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5 votes
Write the slope-intercept form of the line that passes through (-10,17) and (5,-4)

1 Answer

5 votes

Answer:

y = 7/5 x + 31

Explanation:

To find the slope, we need to use the formula

m = (y2-y1)/(x2-x1)

m =(-4-17)/(5- -10)

= -21/(5+10)

= 21/15

Divide the top and bottom by 3.

= 7/5

The slope is 7/5.


Using the point slope form of the equation,

y-y1 = m(x-x1)

y-17 = 7/5 (x--10)

y-17 = 7/5(x+10)

Distribute the 7/5 ths.

y-17 = 7/5 x + 7/5*10

y-17 = 7/5 x +14

Add 17 to each side

y = 7/5 x + 14 + 17

y = 7/5 x + 31


This is in slope intercept form, with the slope being 7/5 and the y intercept of 31

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User Bitbucket
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