Which line has slope -1 and passes through (2,3)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. y = -x + 5.
We use the point-slope form of a line: y – y1 = m(x – x1)
Here, slope m = –1, point (x1, y1) = (2, 3)
y – 3 = –1(x – 2)
⇒ y – 3 = –x + 2
⇒ y = –x + 5