For each additional staff member available decreases wait time by about 1.62 minutes. The statement is TRUE
The statement that when the wait time is 0 minutes, 18 staff are available is FALSE
The standard equation of a line is given as y = mx + b where:
- m is the slope of the line
- b is the y-intercept.
The slope is also known as the rate of change of the function.
If a line that models the data is given by the equation y=−1.62x+18;
This shows that each additional staff member available decreases wait time by about 1.62 minutes. The statement is TRUE
The y-intercept is the point where the line cuts the y-axis. The y-intercept (0, 18) means that when the wait time is 18 minutes, 0 staff are available, hence the given statement is FALSE
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