Answer:
f(3) = - 7 , g(- 3) = 39
Step-by-step explanation:
To evaluate g(3) , substitute x = 3 into f(x)
f(x) = - 2x - 1 , then
f(3) = - 2(3) - 1 = - 6 - 1 = - 7
To evaluate g(- 3) , substitute x = - 3 into g(x)
g(x) = 4x² - x , then
g(- 3) = 4(- 3)² - (- 3) = 4(9) + 3 = 36 + 3 = 39
