The slope intercept equation are as follows:
- y = 35 + 15x
- y = 30 + 0.5m
- y = 150x + 250
- y = 3x + 2.5
How to solve linear equation?
Linear equation can be represented in slope intercept form as follows;
y = mx + b
where
Therefore,
1.
y = 35 + 15x
where
x = number of hours rented
y = total cost
Hence,
80 - 35 = 15x
45 = 15x
x = 45 / 15
x = 3
The rent for a cost of 80 dollars is 3 hours
2.
y = 30 + 0.5m
where
m = miles
y = 30 + 0.5(40)
y = 30 + 20 = 50
The cost if it run for 40 miles is 50 dollars.
3.
Shirley paid 700 dollars for 3 hours
Therefore,
700 - 450 = 250
Hence,
y = 150x + 250
4.
5.5 - 3 = 2.5
Therefore,
y = 3x + 2.5
learn more on linear function here: https://brainly.com/question/21298390
#SPJ1
