Mathematics
Grade10
Easy
Question
For the equation y + 1 = −3(x - 5), the line contains the point (5, −1), find the slope.
- -1
- 3
- -3
- 5
Hint:
Point-slope form of equation of a line is y - y1 = m (x - x1)
here slope is m.
The correct answer is: -3
Step1 : Point-slope form of equation of a line is y - y1 = m (x - x1)
The equation of the line is y + 1 = −3(x - 5)
Step 2 : Comparing
So, m= -3
m is the slope and m = -3 , slope is -3 .
slope is first term on the left side in front of the bracket.
