Question

Help plz answer all no need for expaninations

Answer 1

first pic: C 17
second pic: C 1
third pic: D 11
fifth pic:

Answer 2

Answer: C, B, A, D

Explanation:

1. option C

f(x) = 2x² - 1

f(-1) = 2(-1)² - 1

= 2(1) - 1

= 2 - 1

= 1

2. option B

f(x) = 2x - 5

11 = 2x - 5

16 = 2x

8 = x

3. option A

f(x) = 2x - 5

f(3) = 2(3) - 5

= 6 - 5

= 1

4. option D

f(x) = x² + 7

f(-2) = (-2)² + 7

= 4 + 7

= 11

5. Question 7 not provided so unable to answer