2-4
Name:_________________________________________
Writing Linear Equations Part 1
Forms of Linear Equations
Standard Form
Slope-Intercept Form
Point-Slope Form
Formula for Slope
Slope Intercept Form
m=
b=
ex 1. Write an equation in slope-intercept form of a line with slope 3 and y-intercept -2
ex 2. Write an equation in slope-intercept form of a line with slope ½ and y-intercept 4.
ex 3. Write an equation in slope-intercept form of a line with slope 4/3 passing through point (0,4).
Point-Slope From
m=
(x1, y1)  Point
ex 4. Write an equation of a line with slope ½ passing through point (2,3)
ex 5. Write an equation of a line with slope -3 passing through point (-2, -1)
When you are given 2 points the first thing you need to do is find the _____________ between the
two points.
ex 6. Write an equation of a line passing through points (-2, 7) and (3, -3)
ex 7. Write an equation of a line passing through points (4, -9) and (2, -4)
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Homework: ANSWER ON SEPARATE SHEET OF PAPER
Label 2-4 Writing Equations of Lines
Find the slope between the two points given for each.
1. (2, 0) and (-4, 5)
2. (-3, 7) and (10, -2)
3. (15, 9) and (3, -6)
Write the equations of the lines that satisfy the following in slope intercept form.
4.
slope 5, y-intercept -8
5.
slope -2, y-intercept 1
6.
slope 3, passes through ( 0, -2)
7.
slope – ½ , passes through ( 2, 5)
8.
passes through (-2, -6) and ( 4, 6)
9.
passes through ( -4, 12) and (-2, -4)