Question

1. Which scatter plot could have a trend line whose equation is y - 3x + 10 (A) 60 60 40 40 20 20 0 y M 10 20 0 10 20 D . 12 60 8 40 4 29 0 10 220 0 10 10 20

Answer 1

Step-by-step explanation

Given the trend line equation that defines a scatter plot

We will have to substitute the values of x = 2.5,5,7.5,10,15,20 and check the graphs

So, when x =2.5

`\begin{gathered} y=3(2.5)+10=7.5+10=17.5 \\ y=17.5 \end{gathered}`

when x=5

`\begin{gathered} y=3(5)+10=15+10 \\ y=25 \end{gathered}`

When x= 7.5

`y=3(7.5)+10=32.5`

When x =10

`\begin{gathered} y=3(10)+10=40 \\ y=40 \end{gathered}`

If we check all the values obtained to the graph, we will discover that the best option will be

Option B is more correct

Because most of the points conform to the trend line equation