Question

2. Evaluate each function at the specific value

a) f(x) = -4x + 11 find f(6)

b) f(x) = -4x + 11 find f(x) = -1​

Answer 1

f(6) says “take f(x) = -4x + 11 and put 6 in for every x-value and then clean it up.”

f(6) = -4(6) + 11

= -24 + 11

= -13


f(x) = -1 says “set your function equal to -1 and solve for x”

f(x) = -1

-4x+11 = -1

-4x = -12

x = 3

So f(3) = -1.