Question

Does any one know this i need help!!!

Answer 1

7(x)=5x+7

to find the x / zero intercept, plug in f (x) = 0

0=5x+7

move the left side and change the sign

-5x7

divide both of the equation by -5

x=
`-\frac75`

same steps for g(x)=-2x-4

x=-2