Without plotting the point, tell which quadrant (-4, -2) is in
What is quadrant III
100
The m in y=mx+b
What is slope?
100
K in the equation y=kx?
What is the constant of variation?
100
Slope intercept form of an equation of a line
What is y=mx+b
100
What is the x in the function y=f(x)
What is input or domain
200
The graph of y=5, and x=3
What is a horizontal line, what is a vertical line
200
Two lines that have equal slopes in the equation y=mx+b
What are parallel lines
200
The direct variation equation that relates x and y when x=3 and y=6
What is y=3x
200
What changes need to be made before this equation can be graphed? 3x+y=2
Make the changes you stated.
What is slope intercept form of an equation. y=-3x+2
200
A relation represented by a graph is a function if and only if it passes this test
What is the vertical line test for functions
300
Rewrite the equation 1/2x+5/2y=1 in slope-intercept form, and find the slope and y-intercept
What is y=-1/5x+2/5; y-int=2/5; slope=-1/5
300
Find the slope given the points (-2,4), and (3, -5)
What is -9/5?
300
In a direct variation equation, how are the constant of variation and the slope related? Use your answer to describe the graph of the equation y=3x
3 is the slope and the constant of variation. The graph begins at (-1, -3) and ends at (1, 3), passing through the origin
300
Explain how to graph y=-2/3x + 5
What is plot five on the y-axis then go down 2 and right 3 to plot second point and connect the dots.
300
Evaluate the function y=2x-3 when x=-2
What is -7
400
Find three different ordered pairs that are solutions of the equation y=3(6x-1)
What is (0, -3), (1, 15), (2, 33)
400
Formula used to calculate the change in x and y coordinates of a line passing through 2 given points
What is m=y2-y1/x2-x1
400
Your total pay, p, is $18 and you worked 3 hours, h. Write a model that relates the variables p and h.
What is p=6h
400
Explain how to get 2x-3y=6 into slope-intercept form and show the final result
Write the equation in slope intercept form by subtracting 2x on both sides and dividing all terms by -3 to get y=2/3x-2
400
Describe a line that cannot be the graph of a linear function
What is a vertical line
500
Use a table of values to graph the equation y=1/2x-3
See table
500
Describe a positive slope, negative slope, zero slope, and undefined slope
What is m>0 (rises), m<0 (falls), horizontal, vertical
500
If a varies directly with b, then does b vary directly with a? Explain your reasoning by drawing models.
Yes. If a varies directly with b then a=kb, and b=1/k(a).
500
You have $50 in your savings account at the beginning of the year. Each month you save $30. The equation s=30m+50 represents the situation. What is the slope of the graph of the line? What is the y-intercept?