Question

What is the approximate equation of this line of best fit in slope-intercept form?

y = −13x + 13 over 10
y = negative 13 over 10x + 13
y = negative 10 over 13x + 13
y = −13x + 10 over 13

Answer 1

Answer:

Step-by-step explanation:

y = negative 13 over 10x + 13 is the best choice.  (0, 13) is the y-intercept.  If we begin at (0, 13) and move approximately 10 units to the right, y decreases by 13, so the slope is m = -13/10.

Writing y = negative 13 over 10x + 13   as  y = negative 13 over 10  plus 13 would be clearer.  We must emphasize that the slope is -13/10 and that this should be enclosed in parentheses:  y = (negative 13 over 10)x + 13.