Find the x- and y-intercepts of the graph of the equation y=x^2 + 3 x -70. for the x intercept I got 67 and for the y intercept -70 when i enter in the answer i keep getting it wrong. It shows that the -70 is right, but the 67 is wrong.

Question

Find the x- and y-intercepts of the graph of the equation y=x^2 + 3 x -70.   for the x intercept I got 67 and for the y intercept -70 when i enter in the answer i keep getting it wrong. It shows that the -70 is right, but the 67 is wrong.

anonymous · Answer

x intercept is when y=0

0=x^2+3x-70

solve by factoring

anonymous · Answer

how are you factoring? (x+?)(x-?)

anonymous · Answer

Yeah.

what numbers multiply to 70 but add to 3

-7 and 10

(x-7)(x+10)=0

anonymous · Answer

so then for your x you would get pts ( 7,-10)

anonymous · Answer

theyre x intercepts so

(7,0) and (-10,0)

anonymous · Answer

thank you.