SOLUTION: I am trying to graph this line y+4/5x-10 I know th y intercept is (0,-10) I am having a hard time coming up with the x intercept what I came up with is (0,10.3) x=-10-4/5 x=54/5

Algebra ->  Graphs -> SOLUTION: I am trying to graph this line y+4/5x-10 I know th y intercept is (0,-10) I am having a hard time coming up with the x intercept what I came up with is (0,10.3) x=-10-4/5 x=54/5      Log On


   

Question 705748: I am trying to graph this line y+4/5x-10
I know th y intercept is (0,-10) I am having a hard time coming up with the x intercept what I came up with is (0,10.3)
x=-10-4/5
x=54/5
x=10.3
Answer by Stitch(470) About Me  (Show Source):
You can put this solution on YOUR website!
I think you meant to type Y = 4/5X - 10
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The standard eqaution of a line is Y = mX = b
Where m is the slope and b is the Y-intercept.
So yes, (0,-10) is the Y-intercept.
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The X intercept is found when Y is equal to zero.
0+=+%284%2F5%29X+-+10
Add 10 to both sides
10+=+%284%2F5%29X
Multiply both sides by 5/4
%285%2F4%29%2A10+=+cross%28%285%2F4%29%2A%284%2F5%29%29%2AX
Simplify
highlight%2812.5+=+X%29
The x-intercept is (12.5,0)
graph%28300%2C300%2C-20%2C20%2C-20%2C20%2C%284%2F5%29x-10%29