Question

Line CD passes through points (0, 2) and (4, 6). Which equation represents line CD?
y = 2x – 2
y = 2x + 2
y = x + 2
y = x – 2

Answer 1

Answer:

y = x + 2

Step-by-step explanation:

formula: m=(y2-y1)/(x2-x1)

m = (6 - 2) / (4 - 0)

m = 4 / 4

m = 1

y = mx + b is the slope intercept form.

y = 1x + b or y = x + b

Therefore substitute one of the point into the equation. for this question lets use point (0,2) *(x,y)

2 = 1(0) + b

2 = b

Now put them all together

y = x + 2