SOLUTION: what are the steps to find the x and y intercept of in a equation and give and graph it.

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Question 513474: what are the steps to find the x and y intercept of in a equation and give and graph it.
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
The general the case can be illustrated with a simple example:
y = mx + b is the slope-intercept form of an equation
.
m = slope
m = change in y / change in x
m = y-y1 / x-x1
m = rise / run
.
b = y-intercept, defined by the point (0,b)
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The x-intercept is (x,0).
So you set y=0 and solve for x
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y = 2x + 3
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m = 2, the coefficient of x
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when x=0,
y = 2(0) + 3
y = 3
which is the point
(0,3)
.
when y=0
0 = 2x + 3
2x = -3
x = -3/2
which is the point
(-3/2,0)
.
With two points you can draw a line.
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+graph%28500%2C500%2C-5%2C5%2C-5%2C5%2C2%2Ax%2B3%29+
.
Done.