10 points for mathematician.?

Question

write an equation in slope-intercept form

A) x-intercept= -8 y-intercept= 5

B) vertical and passes through (-4,-2)

C) the y-axis

Answer 1

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Answer 2

A) x-intercept= -8, so point is (-8,0)

y-intercept is 5, so point is (0,5)

Slope= 5-0 / -8-0, =5/-8, = -8/5

y=(-8/5)x+b

But b represents the y-intercept

Therefore y=(-8/5)x+5

B) Vertical, passes through (-4,-2)

x= -4

C)

the y-axis

x=0

Answer 3

A. gradient,m=y/x=-5/8

        equation is y=mx+c,c=5

                         y=-5/8X+5

B             m=-2/-4=1/2



                y=1/2x-2

C              X=0