Line qr goes through points q(0, 1) and r(2, 7). which equation represents line qr?
y – 1 = 6x
y – 1 = 3x
y – 7 = 2x – 6
y – 7 = x – 2

y – 1 = 3x

Step-by-step explanation:

The slope of this line is given by  

Where m is the slope

(x_1, y_1) is the first point, (0,1), and

(x_2,y_2) is the second point (2,7)

Substituting, we get:

The point slope form of a line is given by  

Substituting , we get:

2nd option is right.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb