Function Properties
Slope
Slope-Intercept Form
Direct Variation
Parallel & Perpendicular
100
Is the following set of points considered a function: {(3, 4), (1, 2), (4, 9)}
What is yes, it is a function
100
Line with a slope of zero is
What is horizontal
100
Slope-intercept form is written as
What is y = mx + b
100
Direct variation is a line that always crosses through what point?
What is (0,0) or the origin
100
Lines that never intersect are considered
What is parallel lines
200
True or false: {(2, 3), (3, 3), (4, 3)} is not a function
What is false
200
Given two points, how can we determine the slope?
What is m = (y2-y1)/(x2-x1) or change in y over change in x
200
What is the slope of y = 3x - 12
What is 3
200
The equation of direct variation is
What is y = mx
200
Perpendicular lines have what kind of slopes
What is opposite reciprocals
300
Domain is defined as
What is all the x-values in the set of points
300
Aside from change in y over change in x, how can we define slope? (Think graphically)
What is rise over run
300
Slope-intercept tells us what the slope is and what else?
What is y-intercept
300
If y varies directly as x, and y = 2 and x = 3, then what is the equation of direct variation?
What is y = 2/3x
300
y = -5x - 15 y = -5x + 12.4
What is Parallel
400
What is the domain of {(3, 4), (4, 6), (5, 8), (7, 12), (10, 18)}
What is {3, 4, 5, 7, 10}
400
Given the points (2, 4) and (3, 6), what is the slope?
What is 2
400
Given the points (0, -5) and (3, 1), write the equation in slope-intercept form.
What is y = 2x - 5
400
If y = 21 when x = 3, then what is y when x = 1?
What is y = 7
400
Give an equation in slope-intercept form that is parallel to the equation y = 3x + 3
What is any equation with the slope 3. ex: y = 3x – 1
500
What is the domain and range of the function y = 2x +1
What is all real numbers
500
Given (2, 4) and (2, 8), find the slope.
What is undefined
500
Given the points (2, 4) and (6, 6), find the equation in slope-intercept form.
What is y = 1/2x + 3
500
The cost of tacos are directly proportionate to the amount of tacos bought. If Mr. Jones bought 3 tacos at $4, how many tacos can Mr. Jones buy with $12?
What is 9 tacos.
500
What is the equation of a line in slope-intercept form that is perpendicular to the line y = 1/4x + 2 and contains the point (3,-6)?
What is y = -4x + 6
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