a 
7
because 4a + 7 - 7 35 - 7
equals 4a 28
and 4a/4 28/4
equals a 7
Answer:
x = -6,3,15,-12; y = 11,5,-3,15
Step-by-step explanation:
Domain is the x value, so plugged in the x values into the equation and got the y values or range.
Answer:
If your asking whether the graph shown is a function or not the answer is yes it is a function.
Step-by-step explanation:
There is a test called the vertical line test that states if you can draw a vertical line anywhere on the graph and it only passes through one point then the graph represents a function.
Answer:
It would take 6 hours for you to travel 72 miles.
Step-by-step explanation:
This question can be solved by a simple rule of three.
We have that:
Each hour, you ride 12 miles.
How many hours will take for you to travel 72 miles?
So:
1 hour - 12 miles
x hours - 72 miles
12x = 72
x = 72/12
x = 6
It would take 6 hours for you to travel 72 miles.
