Vocabulary
Writing Linear Functions
Slope
Miscellaneous
100
Describe 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
Identify the slope of the linear equation
y = -x + 6
The slope is -1
100
Function or not?
(-2,3), (-1,3), (8,4), (11,2)
yes
200
Describe an x-intercept.
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
What is the slope of a horizontal line?
The slope is 0.
200
Solve the equation for x:
2(x + 3) = 14
x = 4
300
The definition of slope is...
What is the steepness of a line?
300
Write the linear function in this graph:
y=20x-15
300
If you graphed these points, would they form a linear function?
(0,2) (3,14) (5,22) (9,38) (11,46)
YES This represents a linear function. Both x and y increase by a constant rate of change.
300
What is the slope of y=5? Is the graph vertical or horizontal?
horizontal , m= 0
400
What is Slope-Intercept Form?
400
Write a linear function that passes through the points (0,2) and (-4,5).
y= 3/4x +2
400
Find the slope of a linear function that contains the points (-2 , 8) and (5 , -13)
-3
400
Identify the slope and y-intercept of the standard form equation
-5x + 3y = -15
Slope intercept form y = (5/3)x - 5
Slope: 5/3
y-intercept: -5
500
What are the three forms of a linear equation?
Slope Intercept form
Point slope form
Standard form
500
Write x-2y=-4 in slope intercept from.
y=0.5x+2
500
Write the equation in slope-intercept form of the table below.
x 0 -1 2 5 8
y 1 -2 7 16 25
y = 3x + 1
500
Explain two ways you could solve 20 = 5(−3 + x)
1) Divide by 5 first, or (2) Distribute the 5 first