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Posted on Jan 02, 2017

The equation of any straight line, called a linear equation, can be written as: **y** = mx + b, where m is the slope of the line and b is the **y**-**intercept**. The **y**-**intercept** of this line is the value of **y** at the point where the line crosses the **y** axis.

Graphing Equations and Inequalities Slope and intercept First Glance

Graphing Equations and Inequalities Slope and intercept First Glance

Feb 05, 2016 | Apple iPod touch

A great tutorial: https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/linear-equations-in-slope-intercept-form

Mar 17, 2015 | math.com Computers & Internet

The "slope intercept form of the equation of a (the) line" is y=mx+b, where m is the slope of the line and b is the y-intercept.

We are given the slope of 1/2, so m= 1/2.

We can now write y=1/2 x + b.

Since the point (-2,-3) is on the line, we can substitute it in and solve for b. We put the -2 in for x and -3 in for y.

-3 = 1/2(-2) +b

-3 = -1 + b

-3 + 1 = -1 + b +1

-2 =b

Thus, the equation of the line is y= 1/2 x -2

To check if we did this correctly, plug in the point (-2, -3) to see if it works.

Left Side Right Side

-3 = 1/2 (-2) -2

= -1-2

= -3

We are given the slope of 1/2, so m= 1/2.

We can now write y=1/2 x + b.

Since the point (-2,-3) is on the line, we can substitute it in and solve for b. We put the -2 in for x and -3 in for y.

-3 = 1/2(-2) +b

-3 = -1 + b

-3 + 1 = -1 + b +1

-2 =b

Thus, the equation of the line is y= 1/2 x -2

To check if we did this correctly, plug in the point (-2, -3) to see if it works.

Left Side Right Side

-3 = 1/2 (-2) -2

= -1-2

= -3

Feb 24, 2015 | Office Equipment & Supplies

Use the statistics feature called linear regression to find the slope (m) and the intercept (b) then write the equation of the best line as y=mx+b

Mar 01, 2014 | Office Equipment & Supplies

I will not try to make sense of the context (there is no a). You have a linear relation between two variables x and s (y). Here is how you find the x- and y-intercepts.

x-intercepts (or zeros, roots).

**The x-intercepts are the values of x when y=0. There could be several x-intercepts.**

Set y=0 in the relation 90=6x+3(0) or x=90/6=15. Note: for a linear function**y=ax+b **there is only one x-intercept.**x=-b/a**

**y-intercept**. For a function there can only be **one y-intercept**.

I**t is the value of y when x=0**

Set x=0 in 90=6(0)+3y, This gives** y=90/3=30**

The coordinates of the points of intersection of the line with the axes are (15, 0) and (0,30).

x-intercepts (or zeros, roots).

Set y=0 in the relation 90=6x+3(0) or x=90/6=15. Note: for a linear function

I

Set x=0 in 90=6(0)+3y, This gives

The coordinates of the points of intersection of the line with the axes are (15, 0) and (0,30).

Nov 11, 2013 | Computers & Internet

Hey! The standard equation of a straight line is y=mx+b (wherein x&y are the coordinates, m is the slope of the line and, b is the y-intercept). Re-arranging your equation to follow the standard equation, you'll have y= -x - 4 or y=(-1)x + (-4).

To plot the equation, try substituting a number to the (x) coordinate to get the value of the (y) coordinate:

Ex:

If x=0, y= -4

If x=1, y= -5

If x=2, y= -6

If x=3, y= -7

Assuming you know how to plot these coordinates, you now have a graph of the equation. Hope I answered your query. Thank you.

To plot the equation, try substituting a number to the (x) coordinate to get the value of the (y) coordinate:

Ex:

If x=0, y= -4

If x=1, y= -5

If x=2, y= -6

If x=3, y= -7

Assuming you know how to plot these coordinates, you now have a graph of the equation. Hope I answered your query. Thank you.

Jun 09, 2012 | Sony HANDYCAM HIDEF 16GB MP4 FL MEM CAM 27...

The x intercept is where your line will cross the x axis. Therefore, the value for y at this point is 0. Substitute 0 for y in this equation and solve for x.

6x + 3(0) = 27

x = 27/6

x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27

y = 27/3

y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

6x + 3(0) = 27

x = 27/6

x = 4 1/2

x intercept = (4 1/2, 0)

Follow the same reasoning for the y intercept.

6(0) + 3y = 27

y = 27/3

y = 9

y intercept = (0,9)

Now plot these two points and draw your line through them.

May 18, 2012 | SoftMath Algebrator - Algebra Homework...

The equation of a straight line can be cast into several forms: functional form, general form, symmetrical form. The functional form is the one usually known as slope intercept form.

In the functional form, y=ax+b or sometimes y=mx+b, the factor of the x-variable (a or m as the case may be) is the slope of the straight line, and the value b, is the ordinate (y-value) of the point where the straight line cuts (intercepts) the y-axis.

Since you say nothing about the particulars of the line that interests you, there is not much more that anybody can help you with.

In the functional form, y=ax+b or sometimes y=mx+b, the factor of the x-variable (a or m as the case may be) is the slope of the straight line, and the value b, is the ordinate (y-value) of the point where the straight line cuts (intercepts) the y-axis.

Since you say nothing about the particulars of the line that interests you, there is not much more that anybody can help you with.

Mar 25, 2012 | SoftMath Algebrator - Algebra Homework...

The general answer is no. However the calculator can be used to find the slope and the y-intercept. You write the formula for the rate of change (a) and use the calculator to calculate it. Then you use the formula to find the y-intercept.

If you have 2 points, you can use the 2 -var statistics program to find a linear regression.

If you have 2 points, you can use the 2 -var statistics program to find a linear regression.

Jul 05, 2011 | Casio FX-115ES Scientific Calculator

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