Answer:
4) y = 2x - 7
Step-by-step explanation:
First we have to find the slope by using the following formula....
let (3, - 1) be
, let (8, 9) be
, and m be the slope, then....

Now that we know the slope we can find the equation of the function by using point-slope for of the function which look like this.....

Kyle drove x hours
Sally drove x + 7 hours
Added together they both drove 2x + 7 hours
2x +7 = 35 hours
Subtract 7 from both sides:
2x = 28
Divide both sides by 2:
x = 14
Kyle drove 14 hours
Sally drove 21 hours
Answer:
12 - x
Step-by-step explanation:
y = -x + 12
Replace x with y.
x = -y + 12
Solve for y, x = -y + 12
= 12 - x
Hope this helps, please mark brainliest if possible. :)
I think it’s the third option
Answer:
the candy is $1.60 a pound
Step-by-step explanation:
8/5=1.60