Question

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?

f(x) = –3x – 6
f(x) = –3x – 4
f(x) = –3x + 16
f(x) = –3x + 14

Answer 1

f(x) = -3x + 14

Explanation:

y + 1 = -3(x - 5)

solving,

y + 1 = -3x + 15

y = - 3x + 14

we know that f(x) = y so,

f(x) = -3x + 14