
Graphing Review Part 1
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Easy
+2
Standards-aligned
Ethan Arenson
Used 8+ times
FREE Resource
8 Slides • 24 Questions
1
Graphing Review
Part One
2
Overview
Ordered pairs
Slope
x- and y-intercepts
Equations in slope-intercept form
3
Ordered Pairs
4
Graphing
An ordered pair refers to a point (x,y) on the coordinate plane.
Plot the point (2,1).
Start at the origin, then move 2 units to the right (in the x-direction) and 1 unit up (in the y-direction).
5
Graphing
Plot the point (1,2).
Start at the origin, then move 1 unit to the right (in the x-direction) and 2 units up (in the y-direction).
6
Graphing
Plot the point (4,6).
7
Graphing
Plot the point (8,2).
8
Graphing
Plot the point (-4,3).
Start at the origin, then move 4 units to the left (in the x-direction) and 3 units up (in the y-direction).
9
Graphing
Plot the point (-2,6).
10
Graphing
Plot the point (-1,5).
11
Graphing
Plot the point (-6,-4).
Start at the origin, then move 6 units to the left (in the x-direction) and 4 units down (in the y-direction).
12
Graphing
Plot the point (-10,-3).
13
Graphing
Plot the point (-6,-4).
14
Graphing
Plot the point (6,-4).
Start at the origin, then move 6 units to the right (in the x-direction) and 4 units down (in the y-direction).
15
Slope
Slope refers to the steepness of a line.
If you imagine walking along a line from left to right, a positive slope means you're walking uphill. A negative slope means you're walking downhill.
16
Multiple Choice
Describe the slope of the line.
positive (uphill)
negative (downhill)
zero (horizontal)
infinite (vertical)
17
Multiple Choice
Describe the slope of the line.
positive (uphill)
negative (downhill)
zero (flat)
infinite (vertical)
18
Multiple Choice
Describe the slope of the line.
positive (uphill)
negative (downhill)
zero (horizontal)
infinite (vertical)
19
Multiple Choice
Describe the slope of the line.
positive (uphill)
negative (downhill)
zero (horizontal)
infinite (vertical)
20
Computing the Slope
21
Multiple Choice
What is the slope of the line?
21
1
2
3
22
Multiple Choice
What is the slope of the line?
−23
−32
32
23
23
x- and y-intercepts
The x-intercept is the point on a line that crosses the x-axis. Here, the x-intercept is (3,0).
The y-intercept is the point on a line that crosses the y-axis. Here, the y-intercept is (0,-3).
24
Multiple Choice
What is the x-intercept for this line?
(0,2)
(3,0)
25
Multiple Choice
What is the y-intercept for this line?
(0,2)
(3,0)
26
Multiple Choice
What is the x-intercept for this line?
(-2,0)
(0,2)
27
Multiple Choice
What is the y-intercept for this line?
(-2,0)
(0,2)
28
Equations in Slope-Intercept Form
29
Multiple Choice
Write the equation for the line with a slope of 3 and a y-intercept of -1.
y=-x+3
y=3x-1
y=3x+1
y=x+3
30
Multiple Choice
What is the equation for this line?
y=−23x−1
y=−32x−1
y=32x−1
y=23x−1
31
Graphing
Move the points to create a line for the equation y=32x−4 .
32
The End
​y=\frac{2}{3}x-1
Graphing Review
Part One
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