Slope
What is slope?
What is the formula for slope-intercept form?
y = mx + b
y - 5 = 5(x - 2)
What is the slope of the line?
5
True or False: The equation y = 2x + 6 is in Standard Form
False
The kind of dot used with < or >
What is an Open Dot?
A line that goes up from left to right has a _____________ slope.
Positive
What is the y-intercept in the equations y = 4x - 2?
-2
The point used in the equation above is...
(-1, -3)
The y-intercept of the line 4x - 5y = 15
(0, -3)
The kind of line used with greater than or equal to
What is the slope formula?
(Y2 - Y1)/(X2 - X1)
The slope in the equation y = -0.7 - 0.9x is...
-0.9
y - 1 = 0.5(x - 2)
The x-intercept of the line 8x + 9y = 72
(9, 0)
No
Margaret is counting slope on a graph. She counts down 5 and left 6. Assuming she calculated correctly, what is the slope of this line?
5/6
If Jill spends $30 a day on Starbucks and has $210, when will Jill be unable to buy more Starbucks?
7 days
Write the equation in point-slope form for the line with points (-2, 5) and (5, 7).
y - 5 = (2/7)(x - 5) OR
y - 7 = (2/7)(x + 2)
Is the equation 0.5x - 0.3y = 2 in Standard Form?
No. A, B, and C must be integers.
Is (-1, 5) a solution to the inequality: y > 3x + 4?
Yes
Every 5 days, Mr. Willats loses 10 pencils. How many pencils would Mr. Willats need to have enough pencils for the 15 days in November?
30 pencils
The y-intercept for the line between (3, 4) and (-4, 7) is...
37/7
Is the point (0.5, 2) on the line y - 5 = 2(x - 2)?
Yes.
Write the line y = -3x +14 in Standard Form
3x + y = 14
True or False: When graphing the inequality y < -7x + 0.3, you would shade on the top of the line.
False