Part A
A) On average, the percent efficiency decreased 16.9 percent for each unit increase in torque ratio
Part B
The percent efficiency for a cyclist who has a torque ratio of 0.11 is 21.34 percent
Explanation:The given equation for the line of best fit is:
y = -16.9x + 23.2
x represents the torque ratio
y represents the percent efficiency
The given equation is in form of y = mx + b
where the slope, m = -16.9
The y-intercept, c = 23.2
The slope m is the ratio of change in percent efficiency per unit change in torque ratio.
Since the slope, m, is negative, the percent efficiency decreased 16.9 percent for each unit increase in torque ratio
The percent efficiency for a cyclist who has a torque ratio of 0.11
Substitute x = 0.11 into the equation y = -16.9x + 23.2
y = -16.9(0.11) + 23.2
y = 21.34
The percent efficiency for a cyclist who has a torque ratio of 0.11 is 21.34 percent
