MATH SOLVE

9 months ago

Q:
# Line CD passes through points (0, 2) and (4, 6). Which equation represents line CD?. .a. y = 2x – 2. b.y = 2x + 2. c.y = x + 2. d. y = x – 2

Accepted Solution

A:

the equation for a line is y = m x + b

using the first set of coordinates (0,2)

2 = m * 0 + b

b = 2using the second set of coordinates (4,6)

6 = 4 m + 2

4 m = 4

m = 4 / 4

m = 1 use those numbers into the line equationy = x +2Answer is C

using the first set of coordinates (0,2)

2 = m * 0 + b

b = 2using the second set of coordinates (4,6)

6 = 4 m + 2

4 m = 4

m = 4 / 4

m = 1 use those numbers into the line equationy = x +2Answer is C