Answer: No, he should have put the x values in the denominator and the y values in the numerator
Explanation:
The formula for calculate the slope is:
You can observe in the formula that the y values must be in the numerator and the x values must be in the denominator.
Then, the correct slope is:
Then, Garret's slope is incorrect, because he should have put the x values in the denominator and the y values in the numerator.