Question

carlos plays an arcade game. the scatter plot shows his score and the number of minutes he plays.
a good line of fit is drawn through the points (6, 50) and (12, 80).
what is the slope of the line of fit?
$m = \square$

Explanation:

Step1: Recall slope formula

The slope $m$ between two points $(x_1,y_1)$ and $(x_2,y_2)$ is $m=\frac{y_2-y_1}{x_2-x_1}$

Step2: Assign given points

Let $(x_1,y_1)=(6,50)$ and $(x_2,y_2)=(12,80)$

Step3: Substitute values into formula

$m=\frac{80-50}{12-6}=\frac{30}{6}$

Step4: Simplify the fraction

$m=5$

Answer:

$5$