Slope
Direct Variation
Slope
Direct Variation
Vocab
100
Describe how to graph the slope
-3/(2)
What is "down 3 and to the right/over 2?"
100
What is the equation for direct variation?
What is y = kx OR y=mx?
100
True/False: -4 is a positive slope
What is FALSE?
100
Please put 16x = -2y into direct variation form.
What is y = -8x?
100
What is the Sum?
The result of adding two or more numbers.
200
What is the slope? Is it Positive or negative?
y=-2x+12
-2; Negative
200
Is the equation y = 3x + 2 in direct variation form?
What is NO?
200
Describe how to graph the slope
2/5
What is go up 2, right/over 5?
200
Is the equation 8x = -2y an example of direct variation?
What is YES?
200
Absolute Value
The distance of a number from zero on a number line, always a positive value. Written: |x|
300
What is the slope of the line that passes through the coordinate points (3, 8) and (-1, 4).
*Simplest form*
What is 1?
300
What is the slope in the equation y = 5x?
What is 5?
300
What is the slope of the line for the following graph?
What is 1?
300
Is the equation 17 - 3y = -2x an example of direct variation?
What is NO?
300
What is the Slope?
The measure of the steepness of a line, calculated as rise over run (change in y over change in x).
400
What is the Y- Intercept of the following Equation:
y=3x-15
-15
400
Please put the following equation in direct variation form: y -3x = 0
What is y = 3x ?
400
Describe a positive slope
The line rises as it moves from left to right, indicating a positive relationship between the x and y values
400
Is the following graph an example of direct variation? 
What is YES?
400
What is the Slope Formula?
m=(x2−x1)/(y2−y1)
500
What is the equation for finding slope given two coordinate points?
What is
(y2-y1)/(x2-x1)
?
500
Please put the following equation in direct variation form: - 4y = 2x
What is
y = -1/2 x
?
500
Describe an "undefined" slope.
What is a vertical line?
500
Is the following graph an example of direct variation?
What is NO?
500
Slope-Intercept Form
The equation of a line written as y = mx + b, where m is the slope and b is the y-intercept