Mathematics
Grade10
Easy
Question
For the equation y + 1 = -3 (x - 5), the line contains the point (5, -1) and has a slope of____.
- -1
- 1
- -3
- 5
Hint:
The point –slope form of linear equation is represented by y - y1 = m (x - x1), where m is the slope.
The correct answer is: -3
Given y + 1 = -3 (x - 5)
The point –slope form of linear equation is represented by y - y1 = m (x - x1), where m is the slope.
Step 1 : In y + 1 = -3 (x - 5),
m=-3.
So , -3 is the slope of line .
m is the slope in y - y1 = m (x - x1) .
