194k views
4 votes
Please help with my math worksheet I did the front but I need help on the back.

Please help with my math worksheet I did the front but I need help on the back.-example-1
User Joselle
by
8.0k points

1 Answer

5 votes

Answer:

5) g(x) = -7x + 4

a. g(-5) = -7(-5) + 4 = 35 + 4 = 39

b. g(2) = -7(2) + 4 = -14 + 4 = -10

c. g(-1) = -7(-1) + 4 = 7 + 4 = 11

d. g(0) = -7(0) + 4 = 0 + 4 = 4

6) f(x) = 3x² - 1

a. f(9) = 3(9²) - 1 = 3(81) - 1 = 243 - 1 = 242

b. f(-2) = 3(-2)² - 1 = 3(4) - 1 = 12 - 1 = 11

c. f(5) = 3(5²) - 1 = 3(25) - 1 = 75 - 1 = 74

d. f(0) = 3(0²) - 1 = 3(0) - 1 = 0 - 1 = 1

7) g(x) = -4x² - 3x - 7

a. g(-4) = -4(-4)² - 3(-4) - 7 = -59

b. g(-1) = 4(-1)² - 3(-1) - 7 = 0

c. g(0) = -4(0²) - 3(0) - 7 = -7

d. g(3) = -4(3²) - 3(3) - 7 = -52

8) f(x) = x² - 2x

a. f(-5) = (-5)² - 2(-5) = 35

b. f(2) = 2² - 2(2) = 0

c. f(-8) = (-8)² - 2(-8) = 80

d. f(1) = 1² - 2(1) = -1

User Neil From Ohio
by
7.8k points