The jumping jacks are the dependent variable and the time is the independent variable because the jumping jacks depend on the amount of time you're doing it for.
Your answer is either 11/3 or -11/3
Each pad of paper cost 3.25. Here is how I found it.
21.75 x 3 = 65.25
75 - 65.25 = 9.75
9.75 / 3 = 3.25
X = 3.25
Is this what you were looking for?
Slope: -1
Y intercept: -4 aka (0,-4)
The general equation is y=mx+b
m is the constant for the slope of the line
b is the y intercept (when x=0)
X=-1/3 for <span>54x + 18
</span>x=1/3 for <span>18(3x – 1)
</span>x=-1/9 for <span>(6 • 9x) + (6 • 1)</span>
