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Graphing Linear Equations
Solving Linear Equations by Graphing
Rate of Change & Slope
Direct Variation
Arithmetic Sequences as Linear Functions
100
Is 8 + y = 4x a Linear Equation.
What is yes
100
Solve -7 = 4x + 1
What is -2
100
Find the slope between the following points (5, 3), (6, 9).
What is 6.
100
Graph y = 3/4 x
What is a graph with slope 3/4.
100
Write an equation of the nth term of the arithmetic sequence. -3, -8, -13, -18, ...
What is a = -5n + 2
200
Is 9xy - 6x = 7 a Linear Equation.
What is no.
200
Solve 2 - 5x = -23
What is 5
200
Find the slope between the following points (1, 10), (-8, 3).
What is 7/9.
200
Graph y = 2/9 x
What is a graph with slope 2/9.
200
Write an equation of the nth term of the arithmetic sequence. -0.75, -0.5, - 0.25, 0 ....
What is a = .25n - 1
300
Find the x & y intercepts of 2x - 7y = 14
What is 7, 2
300
Solve 2x -5 = 2x + 8
What is no solution.
300
Find the slope between the following points (-3, 7) ( -3, 4).
What is undefined.
300
Suppose y varies directly as x. Write a direct variation equation that relates x and y. Then solve. If y = 15 when x = 12, find y when x = 32.
What is y = 5/4 x; 40
300
Write an equation of the nth term of the arithmetic sequence. 3, -10, -23, -36, ...
What is a = -13n + 16.
400
Find the x and y intercepts of 2x - 3y = 5
What is 2 1/2, 1 2/3
400
Find the x & y intercepts of 4x - 14y = 28
What is 7, -2
400
Find the value of r so the line that passes through each pair of points has the given slope. (-4, r), (-8, 3), m = -5
What is -17.
400
Suppose y varies directly as x. Write a direct variation equation that relates x and y. Then solve. If y = -11 when x = 6, find x when y = 44.
What is y = -11/6 x; -24
400
The fourth term of an arithmetic sequence is 8. If the common difference is 2, what is the first term of the sequence?
What is 2.
500
Is x/2 = 10 + 2y/3 a linear equation and if so write the equation in standard form.
What is yes; 3x - 4y = 60
500
Solve 3x - 11 = 1/3x - 8
What is 9/8 or 1 1/8
500
Find the value of r so the line that passes through each pair of points has the given slope. (r, -5), (3, 13), m = 8
What is r = 3/4
500
Suppose y varies directly as x. Write a direct variation equation that relates x and y. Then solve. If y = 3.2 when x = 1.6, find y when x = 19.
What is y = 2x; 38
500
The common difference of an arithmetic sequence is -5. If a(12) is 22, what is a(1)
What is 77