Question

What are the x– and y–intercepts of y = 2x^2 – 10x + 8?

Answer 1

x intercepts take y=0

Answer 2

0=2x^2 – 10x + 8

Answer 3

solve for x

Answer 4

(factor)

Answer 5

y intercepts make x=0 so y=8

Answer 6

To find your y intercept, plug 0 in for x.
2(0)^2 - 10*0 +8
y=8
To find your x intercepts, factor. You can pull a 2 out of all of the numbers.
2(x^2 - 5x +4) This makes factoring easier.
2(x-4)(x-1)
Now, put each part with an x equal to zero.
x-4=0
x=4
x-1=0
x=1
Therefore, your x intercepts are 4 and 1 and your y intercept is 8.

Answer 7

thanks
i get it now