Answer:
The third option, (-30,10)
Step-by-step explanation:
A proportional relationship is when you multiply one number in the coordinate/pair to get the other number, and that number that you multiply with is consistent. For example, in (60,-20) you multiply the x coordinate 60 by -1/3 to get 20. Next, you have to check if the other answer choices follow the same pattern. <em>For (-30,10), you multiply -30 by -1/3 and get 10</em>! So it works.
Answer:
irrational
Step-by-step explanation:
It cant be square rooted perfectly.
Answer:
Car 1 slope = 35
Car 2 slope = 40
Red line(car 2) is steeper than the blue line(car 1)
slope is miles per gallon
Step-by-step explanation:
Slope formula is

To find slope, pick two points from graph of Car 1
(4,140) (6,210)
= 35
To find slope, pick two points from graph of Car 2
(3,120) (5,200)
= 40
When slope is larger then line is steeper
slope of Car 2 is greater than slope of Car1
So Red line is steeper than the blue line.
Slope is change is y over change in x
It means Change in miles over change in gallons
So slope is miles per gallon
2.22 is the greatest value