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Review: Equation of a Line
Explanation
In this question, the purpose of the first pair of x-y values is to allow us to solve for m. Then we can use the complete equation
to solve for what is asked. So, step 1, to get m, we substitute into the equation:
Then we use m and
the value of x we are given:
To check your answer, you could note that the equation is
for a line with a slope of 6 and a downward offset of 3. That fits with both
the first pair and second pair of coordinates.
The correct answer is (A).
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