Slope and Rate of Change
Intercepts and Slope Intercept Form
Mean, Median, Mode and Range
Direct Variation
Algebraic Expressions
100
Tell whether lines a-d on slide 7 are positive, negative, zero or undefined
What is a - negative, b-zero, c-positive, d - undefined.
100
What are the x- and y- intercepts on slide 3? (What are the points?)
What is x (4, 0) and y (0, 2)
100
What are the "3 M's" of central tendency?
What is mean, median, and mode
100
What is your constant of variation in the equation y=2x?
What is 2
100
3n + 16 = 7n
What is n = 4
200
Find the slope of the line between the given points. (-2, 6) and (8, -4)
What is -1
200
What is the slope and the y-intercept of the equation y = 2/3 x -6
What is slope = 2/3 and y-intercept = -6
200
What is the mean of 2, 7, 1, 4 and 6?
What is 4
200
Is the equation 9y=81x a direct variation? If so, find k.
What is yes. k = 9
200
5n + 3 = 14 - 6n
What is n = 1
300
Tell whether the graph on slide 1 is constant or variable. If constant, find the slope.
What is constant. slope = 2
300
Find the x- and y-intercepts and graph the equation 3x-2y=6
What is x = 2 and y = -3
300
What is the mode of 1, 17, 17, 9, 4, 8, 8, 5, 2, 11
What is 17 and 8
300
What two things does a graph need to look like in order to be a direct variation?
What is a straight line and goes through the origin
300
100(x - 3) = 450 - 50x
What is x = 5
400
Tell whether the graph on slide 6 is a constant or a variable rate of change. If constant, find the slope.
What is variable.
400
Graph the equation y = -3x +5. (Remember to make a table). Tell whether it is linear.
What is linear.
400
What is the median AND the range of the data? 7, 2, 3, 4, 9, 11, 1, 3, 5?
What is median= 4 range = 10
400
Tell whether the table on page 4 is direct variation. If so, write the direct variation equation.
What is yes. k = 1/7x
400
15y + 14 = 2(5y + 6)
What is -2/5
500
Find the slope of the line that passes through the given points. Graph the line. (0, -3) (4, 2)
What is see graph.
500
Write the equation for the graph that goes through the point (5, -5) and has a slope of 3.
What is y = 3x +20
500
Find the mean, median, mode, range AND outlier of the data. 1, 14, 15, 15, 16, 16, 16, 18, 20, 21.
What is mean = 15.2 median = 16, mode = 16, range = 20, outlier = 1
500
Is the equation y+2=3x a direct variation? If so, find the constant of variation.
What is No.
500
7a + 16 - 3a = -4 + 2a
What is a = -10
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