Slope
What is the slope of a line passing through the points (2, 4) and (4, 6)?
1
(x + 1) (x + 2)
x2 + 3x + 2
x + 2 = 10
x = 8
Solve: 2x + 2 = 18
x = 8
Evaluate for when x = 8
4x-2
30
What is the slope of a line passing through the points (0, 0) and (3, 30)?
10
(x - 4) (x + 3)
x2 - x - 12
3x - 2 = 10
x = 4
Solve: 3x + 4 = 7
x = 1
Evaluate for when x = 2
18/x + x
11
What are the two ways to write the slope formula?
rise/run
y2 - y1 / x2 - x1
(2x + 1) (3x + 4)
6x2 + 11x + 4
2x + 3 = x - 6
x = -9
Solve: 3(x+3) = 3x + 9
infinite solutions
Evaluate for x = -5
x + 7 * 3
6
What is the slope of a line passing through the points (3, -2) and (4, 5)?
7
(4x - 3) (2x + 3)
8x2 + 6x - 9
3x + 6 = x + 10
x = 2
Solve: 4x - 5 - 3x + 2 - 2x = 9
x = -12
Evaluate for a = 3 and b = 4
a - 3b + 2
-7
What is the slope of a line passing through the points (-6 ,-6) and (-3, 1)?
7/3
(3x - 5) (3x - 4)
9x2 - 27x + 20
x2 - 5 = 20
x = 5
Solve: 2x + 21 + 3x = 5(x - 12)
no solutions
Evaluate for x = 3
x2 - 4x
-3