Question

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Write the equation of a line that goes through the points (12, 22) and (7, 12). Type your slope and y-intercept into the blanks below to complete the equation. Do not use any spaces.

Answer 1

Explanation:

1. Find the slope of the line using the formula (change in y/change in x)

(12-22)/(7/12)=2

2. Find the y intercept by plugging in one coordinate point and the slope into the slope-intercept form.

Formula: y=mx+b Coordinate: (12, 22)

22=2(12)+b

22=24+b

b=-2

3. Put the equation together given slope and y-intercept.

y=2x-2