Step-by-step explanation:
To give you a hand for this question, I will show you how to work out one of the equations
One equation is 
We know that when x = -2, y = 6
So we can substitute in -2 and see if we get 6
So this equation is true! Now try the same for the other equations :)
Answer:
x=2
Step-by-step explanation:
y=-x+4 y=3x
3x=x+4
2x=4
x=2
(I hope this is the answer)
Answer:
y/2
Step-by-step explanation:
Answer:
a. She ran 7 days
b. 5 miles
Step-by-step explanation:
a. The line plot shows how many miles Katrina ran last week not days however on the line plot there are 7 x's on it, if she ran once a day, then she ran 7 days last week
b. I'm not sure which equation that you would use but I done something similar to this:
1/4 + 1/2(2) + 3/4 + 1(3)=5
