Question about Sony PSP (Piano Black)

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Posted on Oct 05, 2010

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Posted on Jan 02, 2017

that sounds like a problem about "slopes" so I am looking at using the derivative, which is basically the slope of the graph.

- the equation of line PQ can be simplified to y(x) = -2kx + k -8

- derivative relative to X (k is a constant) gives you -2k

- derivative of y(x) = 4x + 7 relative to x gives you 4

if the lines are parallel then the slopes are equal:

-2k=4 gives you k = -2 => your function becomes y = 4x - 8

if the lines are perpendicular the two slopes multiplied together give you -1:

-2k * 4 = -1 gives you k=1/8 => function becomes y = -1/4x - 7/8 or in other words y = -(2x+7)/8

I have made graphic representation and it looks to be correct.

I hope it makes sense.

- the equation of line PQ can be simplified to y(x) = -2kx + k -8

- derivative relative to X (k is a constant) gives you -2k

- derivative of y(x) = 4x + 7 relative to x gives you 4

if the lines are parallel then the slopes are equal:

-2k=4 gives you k = -2 => your function becomes y = 4x - 8

if the lines are perpendicular the two slopes multiplied together give you -1:

-2k * 4 = -1 gives you k=1/8 => function becomes y = -1/4x - 7/8 or in other words y = -(2x+7)/8

I have made graphic representation and it looks to be correct.

I hope it makes sense.

Apr 12, 2017 | Homework

Input: -2/5-3/20+1/10+7/20+X+8/5

Result: X+3/2

Geometric Figure: Line

Alternate form: 1/2 (2X+3)

Result: X+3/2

Geometric Figure: Line

Alternate form: 1/2 (2X+3)

Oct 24, 2012 | mathway.com

All graphs, except the linear function y=ax+b, are non-linear. To graph a function, just enter the GRAPH utility, type in the functions Y1=, Y2=, ... and press the Draw tab.

If you have a specific question, ask it.

If you have a specific question, ask it.

Mar 26, 2012 | Casio FX-9860G Graphic Calculator

You have to use **Y Editor** to define functions on the both sides of the equation and then graph it. Finally option is **F5: Intersection**.

See captured images for equation**5x+10=-2x-7**, **y1=5x+10**, **y2=-2x-7** and **x=-17/7**

See captured images for equation

Feb 25, 2012 | Texas Instruments TI-89 Calculator

Turn Calculator ON.

In scratchpad, add a Graph.

After you press enter to graph the function you will not see anything because the y-intercept is at ordinate 254.47. To see anything you need to zoom out.

You will be prompted for the Center of new graph. Move cursor along the y-axis, upward. After a while you will see the graph.

You can also, and it is quicker, to set the graph window

Set the values as on the screen capture

Here is what you see

Enjoy.

In scratchpad, add a Graph.

After you press enter to graph the function you will not see anything because the y-intercept is at ordinate 254.47. To see anything you need to zoom out.

You will be prompted for the Center of new graph. Move cursor along the y-axis, upward. After a while you will see the graph.

You can also, and it is quicker, to set the graph window

Set the values as on the screen capture

Here is what you see

Enjoy.

Jan 07, 2012 | Office Equipment & Supplies

After you enter the data draw the SCATTER plot first.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

When you perform the (linear) regression analysis LineReg, save the regression equation to a function, for example Y1

The syntax is

LineReg L1, L2, Y1 ENTER

From the Stat>CALC menu press LineReg

The command echoes on command line

Press [2nd][1] to enter the L1 list on command line

Press [,] to separate

Press [2nd] [2] to enter L2 on the command line

Press [,] the comma again

Press [VARS][>][Y-Vars][1~Function][1:Y1] [ENTER]

Press [GRAPH] to have the regression line equation drawn

on the same screen as the Scatter Plot you drew before.

Sep 13, 2011 | Texas Instruments TI-84 Plus Calculator

When you press [STAT] and right Arrow to highlight CALC you see two linear regression model [4:LinReg(ax+b)] and [8:LinReg(a +bx)]

If you select [4: ...] the command echoes on main calculator screen as LinReg(ax+b) and a blinking cursor

If you press [ENTER] you will get your equation, a, b, and r^2 if DiagnosticsOn command has been executed before. However you will not be able to see the line of best fit on top of the raw data scatter plot.

To save the equation of best fit in a function variable, ex Y1, you complete the command as follows

LinReg(ax+b) [VARS][=>][Y-VARS][1:Function][1:Y1]

The Y1 variable will appear on main calculator screen, and you have

LinReg(ax+b) Y1

Press [ENTER]

Screen display the equation, its parameter and its correlation coefficients (if so configured).

Press [GRAPH] to draw the line of best fit on top of the scatter plot.

Here are two screen captures to show you the equation and the line of best fit.

As you can see from the value of r^2, and the graph, a linear regression does not seem good.

If you select [4: ...] the command echoes on main calculator screen as LinReg(ax+b) and a blinking cursor

If you press [ENTER] you will get your equation, a, b, and r^2 if DiagnosticsOn command has been executed before. However you will not be able to see the line of best fit on top of the raw data scatter plot.

To save the equation of best fit in a function variable, ex Y1, you complete the command as follows

LinReg(ax+b) [VARS][=>][Y-VARS][1:Function][1:Y1]

The Y1 variable will appear on main calculator screen, and you have

LinReg(ax+b) Y1

Press [ENTER]

Screen display the equation, its parameter and its correlation coefficients (if so configured).

Press [GRAPH] to draw the line of best fit on top of the scatter plot.

Here are two screen captures to show you the equation and the line of best fit.

As you can see from the value of r^2, and the graph, a linear regression does not seem good.

Feb 01, 2010 | Texas Instruments TI-84 Plus Calculator

Sorry, but you cannot calculate limits of functions with this calculator. It does not have a Computer `Algebra System (CAS). For that you need a graphing calculator with CAS: Casio ClassPad 300, 300PLUS, 330, HP 48 GII, HP49 G/ G+, HP 50G, TI-NSPIRE CAS, TI89 Titanium, TI 92/92PLUS, TI Voyage 200 PLT. It is still a very good scientific (non graphing) calculator

However, you can calculate numerical derivatives, and numerical integrals, solve linear and non-linear equations.

Even though this post does meet your expectations, do not let that prevent you from rating it.

However, you can calculate numerical derivatives, and numerical integrals, solve linear and non-linear equations.

Even though this post does meet your expectations, do not let that prevent you from rating it.

Jan 21, 2010 | Casio FX-115ES Scientific Calculator

Hello,

I am afraid I am missing something here. You can start with the expression of a function and have it graphed on a graphing calculator.

Or you can enter the experimental data, represent them on a graphing calculator and ask the calculator to find the curve that fits the data best, and once that curve is found to give you the equation.

However your calculator does not have the graphing capabilities. All you can do is enter the data and ask the calculator to perform a regression to obtain the expression of the function that fits best.

The available options for the calculator are accessible by pressing [MODE][3:Stat] and

2. A+BX linear

3: _+cX^2 quadratic

4: ln X logarithmic

5: e^X exponential

6:A*B^X power

7: A*X^B Polynomial

8: 1/X

Hope it helps.

I am afraid I am missing something here. You can start with the expression of a function and have it graphed on a graphing calculator.

Or you can enter the experimental data, represent them on a graphing calculator and ask the calculator to find the curve that fits the data best, and once that curve is found to give you the equation.

However your calculator does not have the graphing capabilities. All you can do is enter the data and ask the calculator to perform a regression to obtain the expression of the function that fits best.

The available options for the calculator are accessible by pressing [MODE][3:Stat] and

2. A+BX linear

3: _+cX^2 quadratic

4: ln X logarithmic

5: e^X exponential

6:A*B^X power

7: A*X^B Polynomial

8: 1/X

Hope it helps.

Apr 14, 2009 | Casio fx-300ES Calculator

Jun 02, 2014 | Sony PSP (Piano Black)

Dec 31, 2013 | Sony PSP (Piano Black)

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