# Stuck on this math problem. Some help would be great. Thanks?

Give your result in slope-intercept form, where possible.

a. (-1, 3) and (4, -2)

b. (2, -3) and (2, 4)

Favorite Answer

slope: m = (y,final – y,initial) / (x,final – x,intial)

= ( – 2 – 3 ) / ( 4 – (-1) )

= -5 / 5

m = -1

choose one of the points to solve for b . …. (4, -1)

y = mx + b

(-2) = (-1)(4) + b ……… b = 2

answer: y = (-1) x + 2 or -x + 2

CHECK

at x=-1, does y = 3 (1st point)…

y = (-1)(-1) + 2 = 3 OK

b. slope is undefined (m = infinity),

so slope-int form not possible, but…equation is: x = 2

a) is -1

b) is undefined

You can only answer a) put it in y=mx+b form

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