Review
Which property is the following:
-2 * 0 = 0
Zero Property
What is the Slope Formula?
(Y2 - Y1) / (x2 - x1)
List the steps of writing an equation when given the slope and 1 point
1. List out your information
2. Plug in to y = mx + b
3. Solve for b
4. Rewrite
Does it matter which point you use when solving for b?
No!
What is the slope of of line parallel to
y = 2x - 3
2
What is the slope of y = - x + 3?
-1
Find the slope of the following graph:
Graph #1
-5/4
Write the equation of a line that passes through (1,3) with a slope of 3
y = 3x
What are the steps to writing an equation when given 2 points?
1. Find the slope between the two points
2. Plug in 1 point and the slope to solve for b
3. Rewrite in y = mx + b form
What is the slope of a line perpendicular to
y = 2/3x - 1
-3/2
Solve for x:
2x + 1 = 5
x = 2
What is the slope between (-1, 2) and (2, 8)?
2
Write the equation of a line that passes through (-2, 0) and has a slope of -1
y = - x + 2
Write the equation of a line that has the points (2,1) and (3, 6)
y = 5x - 9
The following lines are:
Parallel/Perpendicular/Neither & why?
y = 2x - 4
y = 1/2x + 3
Neither
Slopes are reciprocals but not negative reciprocals
Solve for y:
2y + 3 = x - 5
y = 1/2x - 4
Find the slope of the following graph:
Graph #2
1/2
Write an equation that has a slope of -3 and passes through the point (-1, -3)
y = -3x - 6
Write the equation of a line that passes through (-5, -3) and (1,3)
y = x + 2
What is the equation of a line parallel to
y = 4x - 6
That passes through the point (2,3)?
y = 4x - 5
Simplify:
(x2 - 3x + 1) - 2(x + 3)
x2 - 5x - 5
What is the slope between (-7, 2) and (6, 5)
3/13
Write the equation of a line that passes through (2, 5) and has a slope of 3/2
y = 3/2x + 2
Write the equation of a line that passes through (3, -5) and (3, -9)
x = 3
What is the equation of a line perpendicular to
y = 2x + 2
That passes through the point (-2, 1)
y = -1/2x