F(x)=x^2-12 and g(x)=2x+13 find (g-f)(5)

Hello from MrBillDoesMath!

10

Discussion:

(g-f)(5)  =

g(5) - f(5) =

(2(5)+13) - (5^2-12) =                                 => as 5^2 = 25

(10+13) - (25-12) =

23 - 13 =

10

Thank you,

MrB

the equivalent expression are always the hardest ones but you look at the gcf also

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )