SOLUTION: graph y = x + 3 and what is the y- intercept?

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Question 391339: graph y = x + 3 and what is the y- intercept?
Found 2 solutions by ewatrrr, stanbon:
Answer by ewatrrr(10682) About Me  (Show Source):
You can put this solution on YOUR website!

Hi,
Using the standard slope-intercept form for an equation of a line y = mx + b
where m is the slope and b the y-intercept.
y = x + 3 y-intercept is (0,3) slope of the line m =1/1
Note: slope tells us as y value changes by 1, x value changes by 1 as well


Answer by stanbon(57258) About Me  (Show Source):
You can put this solution on YOUR website!
graph y = x + 3 and what is the y- intercept?
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You need two points.
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x-intercept = ?
Let y = 0
then x+3 = 0
and x = -3
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So the x-intercept is (-3,0)
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y-intercept = ?
Let x = 0
then y = 0+3
and y = 3
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So the y-intercept is (0,3)
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Plot those two points and draw a line thru them to get:
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%2B3%29
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Cheers,
Stan H.
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