Answer:
Domain: 5, 6, 7, 8
Range: 0, -2, 10, -3
The relation is a function because each x-value has its own y-value.
Step-by-step explanation:
Domain: Set of all first elements in relation
Range: Set of all second elements in relation
How to determine if the relations is a function:
1. Identify the input values.
2. Identify the output values.
3. If each input value leads to only one output value, classify the relationship as a function.
The area is the l*w , does that help?
6) 1 and 1/4
7) 5/7
8)5/6
9) 1 and 7/12
10) 1 and 1/18
11) 1 and 1/6
12) 1 and 1/4
13) 1 and 7/22
14) 19/24
15) 1 and 5/12
16) 1 and 1/24
17) 13/15
h(t) is the height of the diver in feet above the water
Now it asks about the time at which diver reaches the water
When diver reaches the water , the height of diver from water should be zero
So we plug h(t) =0
So

divide whole equation by -16

we can now factor the quadratic equation
So we get
(t+4)(t-3) =0
plug each factor equal to zero and solve for t
t+4 =0 and t-3 =0
So t=-4 and t=3
Now time cannot be negative , So t=3
So time = 3 seconds
It takes 3 seconds for the diver to reach the water