Question

Line QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR?

a. y – 1 = 6x
b. y – 1 = 3x
c. y – 7 = 2x – 6
d. y – 7 = x – 2

Answer 1

The Answer is B.

I took the unit review, as well as did the math myself,

Answer 2

For this we will use equation that gives us equation of line that goes through 2 given points.

that equation is:

`y - y1= (y2 - y1)/(x2 - x1) (x - x1)`

now we implement our given coordinates.
let Q be point 1 and R be point 2
y - 1 = 6/2(x - 0)
y - 1 = 3x

Answer is b.