What is an equation of the line that passes through the points (4, -2) and (8, – 7)? Put your answer in fully reduced form.

y= -5x/4 + 3

Step-by-step explanation:

To find slope, use the equation , so m(the slope) = (-7+2)/(8-4) = -5/4.

Now let us use (4,-2) in the equation .

So y - (-2) = (-5/4)(x - 4) (equation of the line)

y + 2 = -5/4(x - 4)

y + 2 = -5x/4 + 5

y= -5x/4 + 3 (slope-intercept form, also known as fully reduced form)

You could also use (8,-7) instead of (4,-2).

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb