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Ive been super sick so im a little behind. Help please .

1. A line goes through the points (8,9) and (-2,4)
(a) What is the slope of the line? Show your work
(b) Write the equation of the line in point-slope form. Show your work
(c) Write the equation of the line in slope-intercept form. Show your work.

Respuesta :

(a) formula: (y2-y1)/(x2-x1)
(4-9)/(-2-8) = (-5)/(-10) = 0.5

(b) formula: y-y0 = m(x-x0) where x0,y0 is a point on the line and m is the slope
y - 9 = 0.5 ( x - 8 )

(c) formula: y=mx + b
Start with formula from (b)
y -9 = 0.5x - 4
Add 9 to both sides
y = 0.5x +5
Hope this helps.
The answers are in the top right corner.
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