{(a, b), (a + 2, b - 4) }
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what is the equation for the line of best fit for this set of data?
y = - 2x
y = -2x + 2
y = -2x + 2a + b
y = -2x + 2a - b

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

we have the ordered pairs

(a, b), (a + 2, b - 4)

substitute the values in the formula

step 2

Find the equation of the line in point slope form

we have              

substitute

step 3

Convert to slope-intercept form

isolate the variable y