Vocabulary
Linear Functions
Graph it!
Hittin' the Slopes
Grab Bag
100
What makes a y-intercept?
The y intercept is the point where the line crosses the y axis. At this point x=0
100
Write a linear function with a slope of -9 and a y-intercept of 5
y =-9x+5
100
Which list contain points that lie on the graph of
y = 2x − 1?
a. (0, -1), (15, 29)
b. (-2, -4), (1, 3)
c. (-2, -3), (0, 0)
d. (2000, 1999), (3, 5)
a. (0, -1), (15, 29)
100
Identify the slope of the linear equation
y = -x + 6
The slope is -1
100
What are the solutions to |x| = 13?
13 or -13
200
What makes a slope?
The x intercept is the point where the line crosses the x axis. At this point y = 0.
200
Write a linear function in standard form where A=2 B=-4 and C=19
2x-4y=19
200
y = 5/4 x - 2
a slope of 5/4 and a y-intercept of -2
200
Find the slope of a line that passes through the points (0, 5) and (2, 10)
m = 5/2
200
DD! Solve the equation for x:
5x - 2(x - 3) = 24
x = 6
300
Slope Formula
the steepness of a line
300
Write the linear function in this graph:
y=20x-15
300
y = -3x + 5
a slope of -3 and y-intercept of 5
300
What is the slope of the linear function
y = -4/3 x + 5
-4/3
300
Evaluate x2 - 1 where x = -4.
15
400
What is the equation that makes a linear function in standard form?
Ax + By = C
400
DD! Determine the x-intercept.
x 1 2 3 4
y 20 16 12 8
6
400
5y + 2x = 20
a slope of -2/5 and y-intercept of 4
400
Find the slope of a linear function that contains the points (-2 , 8) and (5 , -13)
-3
400
Solve for n where the slope is 2/3.
(-8, n) and (-2, 11)
n = 7
500
DD! Is it linear?
x -6 -2 3 5
y 3 15 30 36
Yes
500
Write the equation into slope-intercept form:
2y - 8x = 16
y = 4x + 8
500
Graph the following equation:
-2x + 3y = 12
a slope of 2/3 and y-intercept of 4
500
Write the slope of the line from the table below.
x -1 0 2 5 8
y -2 1 7 16 25
m = 3
500
Determine the range:
-5 < y < 4