Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?
Options :
a) f(x) = y=-3x + 13
b) f(x) =y= -3x + 16
c) f(x) = y=-3x + 14
d) f(x) = y=-3x + 18
The correct answer is c) f(x) = -3x + 14
Solution:
y + 1 = –3(x – 5)
y+1 = -3x+15
y= -3x+15-1
y= -3x+14
f(x)=y= -3x+14
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