Question

A student must find the slope of a line that passes through the points (2, 2) and (–1, 3). Which of the statements below best applies to the sample mathematical work?

Given the points above, I plug these values into the formula , which yields the expression , which gives a slope of –3.
A.
the formula for the slope of the line is incorrect
B.
the student failed to plug in the proper values into the slope formula
C.
the numeric calculation to find the slope is incorrect
D.
the mathematical work shown is correct