-6 =

Multiply both sides by 18
-108 = b Switch the sides to make it easier to read
b = -108
Check google it might have it
Answer:
The domain is the interval (-∞,∞)
The range is the interval [-4,∞)
Step-by-step explanation:
we have

This is the equation of a vertical parabola in vertex form
The vertex is the point (-4,-4)
The parabola open upward (because the leading coefficient is positive)
The vertex represent a minimum
The domain is the interval (-∞,∞)
so
The domain is all real numbers
The range is the interval [-4,∞)

so
The range is all real numbers greater than or equal to -4
Answer:
when x=6, y=30
when x=7.5, y=37.5
Step-by-step explanation:
Just plug in the value of x into the equation y=5x
so when x=6, the equation will be y=5(6). In this case y=30
when x =7.5, the equation will be y=5(7.5). So y=37.5
Subtract the admission fee you have 15 dollars left then you divide 15 by 0.50 and you should get 30.(she will be able to get on 30 rides )