Question

Latoya is saving money at a constant rate to buy a new computer. The table belowshows the amount of money that Latoya still needs to purchase the computer.Weeks of Saving Money Still Needed2$6305$450753309$210How many dollars is Latoya saving each week?

Answer 1

Step-by-step explanation

Step 1

find the slope of the line, when you know 2 points of a line (P1 and P2) you can find the slope using:

`\begin{gathered} \text{slope}=m=(y_2-y_1)/(x_2-x_1) \\ \text{where} \\ P1(x_1,y_1) \\ P2(x_2,y_2) \end{gathered}`

Let

P1(2,630)

P2(5,450)

replace,

`\begin{gathered} \text{slope}=m=(y_2-y_1)/(x_2-x_1) \\ \text{slope}=m=(450-630)/(5-2) \\ \text{slope}=m=(-180)/(3) \\ \text{slope}=m=-60 \end{gathered}`

it means Latoya saves $60 each week, the neg