Jolon used the slope-intercept form to write the equation of a line with slope 3 that passes through the point (5, –2). His work is shown below. Step 1: -2=3(5)+b Step 2: -2=15+b Step 3: -2+15=15+15+b Step 4: -13=b Step 5: y=3x - 13 Analyze the steps. In which step did the Jolon make an error? A. He switched the x- and y- values in step 1. B. He multiplied incorrectly in step 2. C. He added 15 to both sides in step 3. D. He forgot to add the b-value in step 5.
He should not have added 15 in step 3. The answer is C.
Step-by-step explanation:
The fifteen in step 3 is POSITIVE. To move it to a different side to solve, you must subtract positive numbers and add negative ones. Thus, the answer is C.
