Question

Determine the standard form of the equation of the line that passes through (6, 0) and (2, -7) A. -7x - 4y = -42 B. 7x - 4y = 42 C. -7x + 4y = 42 D. 4x + 7y = -42

Answer 1

m = (0 - (-7))/(6 - 2) = 7/4

0 = (7/4)(6) + b

0 = 21/2 + b

b = -21/2

y = (7/4)x - (21/2)

4y = 7x - 42

-7x + 4y = -42

7x - 4y = 42

The correct answer is B.