
notice the picture of the graph added here
low and behold, x = -17, y is 0, and x= 15, y is 0
the graph is touching the x-axis, an x-intercept
or so-called, a "solution"

Further explanation:
We have to find the equation of the line first to graph the line.
The general form of slope-intercept form of equation of line is:

Given

Putting the value of slope in the equation

To find the value of b, putting the point (-3,5) in equation

Putting the values of b and m

The graph is made by using online graphing tool Desmos.
Keywords: Equation of line, graph of line
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#LearnwithBrainly
<span>With the mean of 40k and standard deviation of 5k, we need to find P(x>=30k). P((30k-40k)/5k) = P(z<-2) = 1-0.0228 which is equal to 0.9772. There is a 97.72% chances that the starting salary will be at least 30k.</span>