Mathematics
Grade10
Easy
Question
If the slope of a line is and the y intercept is -3, write the equation of the line.
- y = 2/3x - 3
- y = 2/3x + 3
- y =-2/3x - 3
- y = 2/3x + 3
Hint:
Given the slope of line as m and intercept as b .
the Equation of line will be y = mx + c .
The correct answer is: y = 2/3x - 3
Given m = 2/3 and b = -3
equation of line =?
Step 1 : Using the slope and y-intercept of the line to write the equation of the line.
Slope-intercept from of equation of a line is y = mx +b
Step 2 : [substituting 2/3 for m and -3 for b]
y = 2/3x -3
so, y = 2/3x -3 is the equation of line.
Equation of line in slope intercept form is
y = slope.x + intercept .
