Answer:
16
Step-by-step explanation:
Plug in 4 for x
f(4) = 5(4) - 4 = 16
Get as close to the perfect square, which you should have memorized. then divide the number by the perfect square. average the answers (perfect square and quotient) by adding them and diving by 2
Answer:
Step-by-step explanation:
4*(x + 5) + 8x = 4*x + 4*5 + 8x
= 4x + 20 + 8x
= 4x + 8x + 20
= 12x + 20
The function is decreasing from x=0 to x=2
