Khan Academy Linear Equations and Graphs Unit Review
The slope of the line is -10/7
( -2 , 3 ) and ( 5 , -7) are two points on a line. What is the slope of the line?
The slope is undefined
( -8 , 1 ) and ( -8 , -5) are two points on a line. What is the slope of the line?
The slope of the line is 9/5
( 1 , 2 ) and ( 6 , 11) are two points on a line. What is the slope of the line? Hint: change in y/ change in x *stack and subtract
The slope is 3/4
( 3 , 2 ) and ( 7 , 5 ) are two points on a line. What is the slope of the line? Hint: point 1 (x,y) point 2 (x,y)
The slope is 0
( 9 , -2 ) and ( 5 , -2) are two points on a line. What is the slope of the line?
y
(0, -3) what kind of intercept?
x
(4,0) what kind of intercept?
A point/ordered pair is written in this order:
(x, y)
Rise over Run
A quick way to find the slope of a line if given the graph
x=-1, y=2
What are the x and y intercepts?
x=-4, y=2
What are the x and y intercepts?
x=-8, y=-4
What are the x and y intercepts?
x=2, y=-4
What are the x and y intercepts?
x=2²/₃, y=2
What are the x and y intercepts?
x=4, y=2
What are the x and y intercepts?
x=8, y=-4
What are the x and y intercepts?
The slope is 4.
What is the slope of this line? Hint: RISE over RUN
The slope is undefined. We can also say this line does not have a slope.
What is the slope of this line? Hint: RISE over RUN Hint: Vertical line
The slope is ZERO.
What is the slope of this line? Hint: RISE over RUN Hint: horizontal line
-2
What is the slope of this line? Hint: RISE over RUN
-3
What is the x intercept from looking at the table?
-10
What is the x-intercept? y = 2x + 20
10
What is the x-intercept? y = 2x - 20
4
What is the x-intercept? y = 3x - 12
8
What is the x-intercept? y = 3x - 24
6
What is the x-intercept? y = 5x - 30
3
What is the y intercept from looking at the table?
-12
What is the y-intercept? y = 3x - 12
7
What is the y-intercept? y = 5x + 7
5
What is the y-intercept? y = 7x + 5
To find the slope from a graph, use
rise/run
What does the m stand for?
slope
Identify the slope and y-intercept of y=3x+1
slope: 3 y-intercept: (0, 1)
Find the slope and a point on the line from: y + 2 = 4 (x-3)
slope: 4 point: (3, -2)
slope
this term describes the steepness of a line
slope-intercept form
y = mx + b
What does b stand for in slope-intercept form?
y-intercept
x intercept
Describes the red dot in this picture
y intercept
Describes the red dot in this picture
negative slope
Describes the slope in this picture
positive slope
Describes the slope in this picture
undefined slope
Describes the slope in this picture
zero slope
Describes the slope in this picture
The slope is -1/2
Find the slope of this graph.
The slope is -4/1
Find the slope of this graph.
The slope is 2/3
Find the slope of this graph.
The slope is 3/2
Find the slope of this graph.
m
In the slope intercept formula of a line y = mx + b, this part is the slope
b
In the slope intercept formula of a line y = mx + b, this part is the y intercept
What information does slope-intercept form give you?
Slope and y-intercept
y = 5x + 7
Solve for y: -21 + 3y = 15x
y = 2x + 5
Solve for y: -2x + y = 5
y = 3/5 x + 4
Solve for y: -3x + 5y = 20
y = 12x + 6
Solve for y: -4x + 1/3 y = 2
y = 2x + 9
Solve for y: -4x + 2y = 18
y = 7/2 x + 11
Solve for y: -7x + 2y = 22
y = -4x + 5
Solve for y: 12x + 3y = 15
y = 4/5 x + 7
Solve for y: 4x - 5y = -35
y = -5x + 9
Solve for y: 5x + y = 9
y = 2x - 7
Solve for y: 6x - 3y = 21
y = 7x - 2
Solve for y: 7x - y = 2
y = -2x + 10
Solve for y: x + 1/2 y = 5
y = -1/2 x + 3
Solve for y: x + 2y = 6
y = -x + 8
Solve for y: x + y = 8
y = x - 11
Solve for y: x - y = 11
zero
The slope of a horizontal line is _______________.
undefined
The slope of a vertical line is _________________.
positive
The slope of the line is: A. positive B. negative C. undefined D. zero
negative
The slope of the line is: A. positive B. negative C. undefined D. zero
The slope is zero.
The slope of this line is: A. positive B. negative C. zero D. undefined
The slope is 1/7
The slope of this table is
The slope is 2
The slope of this table is
Parallel Lines
These lines will have the exact same slope
vertical line
This is a _________________ line. A. horizontal B. vertical
horizontal line
This is a __________________ line. A. horizontal B. Vertical
ordered pair
This is an example of an (x, y) _____ ______