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# Solve y=x Find the y-intercept

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• Damion Oct 31, 2012

what calculator?

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If you use the definition of the y-intercept you will immediatedly find it.
y-intercept = value of y when x=0. Set x=0 in the function y=x and determine y. The y-intercept is also known as the initial value.

Posted on Nov 01, 2012

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Posted on Jan 02, 2017

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## Related Questions:

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You can't solve this. When you have two unknowns you need two equations to solve it and not -10x + 70y = 120, because that is the same equation.
If you know the value of x, or from y you also could solve it.

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### 8x+5y=-25 help me find the x Andy intercepts

To find the x-intercept, set y equal to zero and solve for x.
To find the y-intercept, set x equal to zero and solve for y.

In this case the x-intercept is -3 1/8 and the y-intercept is -5.

Nov 06, 2014 | Computers & Internet

### -6x-3y=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
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y intercept = (0,9)

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

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Use the definitions of the intercepts.
x-intercepts (or zeros or roots) are the values of the independent variables that make the function equal to zero. To obtain an intercept set y=0 in equation : 5x=-10, mean x=-10/5=-2
y-intercept: value of y when x=0.
Just set x=0 in equaltion and solve for y
-4y=-10, gives y=5/2

And Sorry, I cannot enter the answer in the drop box.

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To get the x-intercept, set y= 0 in the equation and solve for x.
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To get the y-intercept of a line you set x=0. So 3(0)-6y=-21. Solve for y: y=(-21/-6)=7/2.
For the x-intercept, set y=0 in the definition of the function, then you solve for x.
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x-intercept (or zero of the function)
Set y=0 in the equation and solve fo x: 2x-5(0)=20 and x=20/2=10

y-intercept (initial value)
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If the equation is in the slope-intercept form y=ax+b
1. y-intercept is b
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y = x -3
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at that point it would be 0 = x -3 x = 3 Therefore where y = 0, x = 3. In a graph, that would point to the coordinate (3,0) for the x-intercept. To find the y-intercept, you'd set x = 0 at that point, you'd have the y-intercept being (0,-3)
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### 2x+4y=8 find x intercept and y intercept

Have you graphed the equation? Are you asking someone to solve and give you the answer or tell you how to use your software?

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