Expressions
Simplify the expression.
2x + 4x
6x
To find the slope on a graph, count the ____________ over ____________?
Rise over run
Find the slope.
(1,-3) (2, 0)
3
What is the slope formula?
y2 - y1 / x2 - x1
x + 4 = 8
x = 4
Simplify the expression.
3y + 2 - 2y
y + 2
When terms have the same variable and the same exponent they are said to be _______________?
Like terms
Find the slope.
(4, 4)(3, 3)
1
What is the slope intercept form?
y = mx + b
2x -3 = 7
x = 5
Simplify the expression.
3(x - 4)
3x - 12
What is this symbol?
<
Less than
Find the slope.
(7, 2) (4, 2)
0
What is the point-slope form?
y - y1 = m(x - x1)
3x -1 =14
x = 5
Simplify the expression.
-2(4x + 3)
-8x - 6
When graphing in slope intercept form, always graph the _________________ first?
b or y-intercept
Find the slope.
(9, -3) (9, -1)
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What is the direct variation equation?
y = kx
or y = mx
2(x + 5) = 30
x = 10
-3(y- 2y + 4)
3y -12
Which formula should you use to write an equation when you have a point and a slope?
Point slope formula
Find the slope.
(-1, -5) (-2, -6)
1
What is the standard for for a linear equation?
Ax + By = C
3x + 6 = 3x -2
No solution!