Problem 1 :
Find the equation of a line in slope-intercept which is passing through the two points (-1, 4) and (2, -5).
Solution :
Problem 2 :
Find the equation of a line joining the two points (1, -5) and (3, -9) in slope-intercept form.
Solution :
Problem 3 :
Find the equation of the line shown below in slope-intercept form.
Solution :
Problem 4 :
Find the equation of the line shown below in slope-intercept form.
Solution :
Problems 5-8 : Write the given linear equation in slope-intercept form.
Problem 5 :
2x + y - 1 = 0
Solution :
The slope-intercept form equation of a line :
y = mx + b
To write the given linear equation in slope-intercept form, solve for y interms of x.
2x + y - 1 = 0
Add 1 to both sides.
2x + y = 1
Subtract 2x from both sides.
y = -2x + 1
Problem 6 :
3x - y + 2 = 0
Solution :
3x - y + 2 = 0
Add y to both sides.
3x + 2 = y
or
y = 3x + 2
Problem 7 :
5x + 2y - 3 = 0
Solution :
5x + 2y - 3 = 0
Add 3 to both sides.
5x + 2y = 3
Subtract 5x from both sides.
2y = -5x + 3
Divide both sides by 2.
Problem 8 :
x - 3y - 9 = 0
Solution :
x - 3y - 9 = 0
Add 9 to both sides.
x - 3y = 9
Subtract x from both sides.
-3y = -x + 9
Divide both sides by -3.
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