Question

A line passes through the points (2, -4) and (4, 2). What is the equation of this line in slope-intercept form?

A. y = 3x – 10
B. y = 2x – 14
C. y = 3x + 14
D. y = x + 4

Answer 1

A

Explanation:

Just did the test. Hope this helps!!

Answer 2

A.

Explanation:

Slope = y2-y1/x2-x1

(2,-4) = (x1,y1)

(4,2) = (x2,y2)

Slope = (2+4)/(4-2)

= 6/2

= 3

Y=mx+b [Plugging (4,2) into this]

2 = 3×4 +b

2 = 12 + b

b = -10