Answer:
-7
Step-by-step explanation:
The slope formula is (y1 - y2) / (x1 - x2).
In this question we have two points: (1,5) and (2,-2).
x1 = 1
y1 = 5
x2 = 2
y2 = -2
then, plug in these numbers into the slope formula
(5-(-2))/(1-2) = 7 / -1 = -7
Answer:
6
Step-by-step explanation:
The linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320
Since we are not told what to find, we can look for t<u>he linear equation that can be used to calculate daily car rentals</u>;
- Let the charge amount be y
- Let the amount per mile of the truck rent be x.
- If rent-An-SUV charges an $80 fee to rent a truck and $12 per mile, this can be expressed in coordinate form as (12, 80)
- Similarly, if another rental company charges a $150 fee to rent a truck and $8.50 per mile, this can also be written in a coordinate form as (8.50, 150)
The standard linear expression is given as f(x) = mx + b
Get the rate of change;

Get the y-intercept;
80 = -20(12) + b
80 = -240 + b
b = 320
Get the required linear equation;
f(x) = mx + b
f(x) = -20x + 320
Hence the linear equation that can be used to calculate daily car rentals is f(x) = -20x + 320
Learn more on linear equation here: brainly.com/question/12788590
Answer:
10
Step-by-step explanation:
you do 90 divided by 20 and get 4.5 so you take away 40 and leftover with 10
The unit rate is three, because if you find the gcm- greatest common factor it would be three.