Using the slope-intercept form, the score is expected to increase by 15 units
<h3>Equation of Line</h3>
To solve this problem, we have to use the equation of line with the slope to determine his score in the game.
The slope-intercept form of an equation is given as
y = mx + c
- m = slope
- c = y-intercept
Taking the points that give line of best fit;
The points are (6, 50) and (12, 80)
m = y₂ - y₁ / x₂ - x₁
m = 80 - 50 / 12 - 6
m = 5
Taking any point
y = mx + c
80 = 5(12) + c
80 = 60 + c
c = 20
The equation is y = 5x + 20
If he decides to play 15 minutes longer;
y = 5x + 20 + 15
y = 5x + 35
The score will change by at least 15 units
Learn more on equation of line here;
brainly.com/question/18831322
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