#8:
Substitute -5 in for x.
y = 9(-5) - 12
y = -45 - 12
y = -57
#9:
Substitute -2 in for x
y = -5(2)² + 18
y = -5(4) + 18
y = -20 + 18
y = -2
S: 1,9
T: 4,9
U: 4.-1
sorry if this is wrong it’s been a while since i’ve done this.
Answer: 400 520<15x+400x 15x+400>520
Step-by-step explanation:
The answer to this question is 0.41