A. The independent variable is time, as time is manipulating the value of her salary.
b. The dependent variable is her cost because what she charges for babysitting depends on how long she works.
c. y = 8x
y = how much she charges for this job
8 = the amount she charges per hour
x = number of hours babysat
x+2 because it just doubles hon so the pattern can actually tell you the expression.
So for example,
if x=2 then 2+2 is 4
if x=4 then 4+4 is 8
and so on and so forth.
I really hope that this makes sense and helped you out in a way hon:)
The answer is going to be 15
moves left 1 unit and up tow units any thing on the inside of the brackets means it will move left or right + menas left - means right on the outside it will move up or down - menas down + means up