Slope-Intercept
What is the slope of the line with the equation y = -2/3x + 4 ?
-2/3
What is the point in the following equation?
y - 4 = 5(x +6)
(-6, 4)
What is the Standard Form equation?
Ax + By = C
What is the slope of the line that passes through the points (-1, 5) and (2, 8) ?
1
Which intercept is called "the zero" ?
x-intercept
What is the y-intercept of the line with the equation y = 3/4x - 7 ?
-7
What is the slope in the following equation?
y + 2 = 7/8(x - 4)
7/8
What are the x- and y-intercepts from the following standard form equation?
3x + 4y = 24
(8, 0) & (0, 6)
What is the slope of the line that passes through the points (-4, -5) and (-3, -9)
-4
What are the x- and y-intercepts for the following equation?
y = 3x - 5
(5/3, 0) and (0, -5)
What do you call a slope-intercept equation that does not have a "b" ?
Direct Variation
What is the point-slope equation for the line that has a slope of 3 and goes through the point (-2, 5) ?
y - 5 = 3(x + 2)
Convert the following standard form equation to slope-intercept form.
8x + 2y = -16
y = -4x - 8
What is the slope of the line that passes through the points (2, 7) and (2, -23)
Undefined
What are the x- and y-intercepts for the following equation?
y = 7x + 7
(-1, 0) and (0, 7)
What is the slope of the line with the equation y = 4 ?
Zero
What is the point slope-equation for the line that has a slope of 5 and goes through the point (0, -2) ?
y + 2 = 5(x) or y + 2 = 5x
Convert the following standard form equation to slope-intercept form.
3x + 2y = -17
y = -3/2x - 17/2 or y = -3/2x - 8.5
What is the slope of the line that passes through the points (-21, 3) and (11, 3) ?
Zero
What are the x- and y-intercepts for the following equation?
4x + 6y = 36
(9, 0) and (0, 6)
What is the slope of the line with the equation x = 8?
Undefined
What is the point-slope equation for the line that goes through the points (4, 6) and (-1, 7) ?
y - 6 = -1/5(x - 4) or y - 7 = -1/5(x + 1)
You are selling magazines and yard-signs to raise money for your baseball team. You sell magazines for $5 each and yard-signs for $9 each. You need to sell exactly $3200 to be able to travel with the baseball team. Write a standard-form equation that will represent x magazines and y yard-signs you need to sell to make exactly $3200.
5x + 9y = 3200
If some crazy company uses the crazy formula y = 3.9 + 2.85(x - 99) to calculate their crazy profits from selling some crazy stuff that crazy people like, what is their rate of change for selling that crazy stuff?
2.85
What are the x- and y-intercepts for the following equation?
7x - 2y = 63
(9, 0) and (0, -31.5)