Question

The graph below shows the relationship between the number of chores that Larissa completes and the amount of money that she earns.

Which is the best prediction of the number of chores completed if she earns $5?
1
2
10
12

Answer 1

2

Explanation:

Answer 2

Option B.

Explanation:

The given graph represents the relationship between the number of chores, x that Larissa completes and the amount of money that she earns, y.

From the given graph it is clear that the equation of best fit line is

`y=2.09x+0.93`

We need to find the expected number of chores completed if she earns $5.

Substitute y=5 in the above equation and find the value of x.

`5=2.09x+0.93`

Subtract 0.93 from both sides.

`5-0.93=2.09x+0.93-0.93`

`4.07=2.09x`

Divide both sides by 2.09.

`(4.07)/(2.09)=x`

`1.947368421=x`

`x\approx 2`

Therefore, the correct option is B.