Answer:
I don't how to do this but check Quizlet♂️
Answer:
Solve for f.
f(−4)=−3x+6
Step 1: Divide both sides by -4.
−4f/-4 = −3x+6/−4
f=3/4x + −3/2
Answer:
f= 3/4x + −3/2
F(x) = 20000 (1-0.15) power x
So
f(x) = 20000 (0.85) power x
Answer is 15 miles per hour