Answer:
Find the rate of change by dividing the value of one term by the value of the preceding term, in your problem:
$15/$10 = 3/2 or 1.5, this is your rate of change
1.5 ($15) = $22.50
Step-by-step explanation:
the x and y intercept would be
x= (-4,0) y=(0,-3)
Answer:
![y = \frac{3}{5} x - 1](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B3%7D%7B5%7D%20x%20-%201)
Step-by-step explanation:
1) find m or the slope:
![m = \frac{ - 4 - 2}{ - 5 - 5} = \frac{3}{5}](https://tex.z-dn.net/?f=m%20%3D%20%20%5Cfrac%7B%20-%204%20-%202%7D%7B%20-%205%20-%205%7D%20%20%3D%20%20%5Cfrac%7B3%7D%7B5%7D%20)
2) plug in coordinate pair to solve for b:
![y = \frac{3}{5} x - b](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B3%7D%7B5%7D%20x%20-%20b)
![2 = \frac{3}{5} (5) + b](https://tex.z-dn.net/?f=2%20%3D%20%20%5Cfrac%7B3%7D%7B5%7D%20%285%29%20%2B%20b)
![b = - 1](https://tex.z-dn.net/?f=b%20%3D%20%20-%201)
3) now you have m and b so you have your formula