Fun with Equations
Solve: 4x + 7 = 31
x = 6
Algebra: Is this a function: {(1, 2), (2, 3), (2, 4)}
Algebra: No
Factor: 4x2-25
(2x + 5)(2x - 5)
y = -2x - 7
slope: -2 y-intercept: -7
The word "product" in math means what?
Multiply
Solve: 2(3x - 4) = 34
x = 7
Write the polynomial in standard form
4g – g3 + 3g2 – 2
-g3 +3g2 + 4g - 2
What is the slope-intercept form of a linear equation?
y = mx + b
Which property is shown below:
a(b + c) = ab + ac
Distributive Property
Which test determines whether or not a relation is a function?
Vertical Line Test
Solve for x: 3x + 5 = 14
x = 3
Algebra: Solve for a: ax + b = c
Algebra: a = (c - b)/x
Factor: x2+17x+72
(x + 9)(x + 8)
Factor: 5x2 - 15x
5x( x - 3)
Given the function f(x) = 10x - 10, evaluate f(-9)
-100
Solve:
3p - 1 = 5( p - 1) - 2(7 - 2p)
p = 3
What is the average rate of change of the line passing through points (2, 1) and (4, 5)?
Answer: 2
Simplify: -4(8x - 2) -2(4 - 3x)
-38x
Express (x + 6)(x - 4) as a trinomial
x2 - 2x -24
Simplify: -(x + 7) -2(4x + 6)
-9x-19
What is the average rate of change between the two points:
(12, -18) & (11, 12)
-30
A colony of 1000 bacteria is growing in a lab at a rate of 0.5% per day. Which type of function can best be used to model
Exponential Growth
The GCF of the expression: 4x2 - 18x3
2x2
Use the quadratic formula to solve the equation:
x2 + 4x + 3 = 0
x = -1 and x = -3
A landscaping company charges a set fee for a spring cleanup, plus an additional labor rate. The equation that models the situation can be shown as C(x) = 55x + 80. In this function, what do the 55 and the 80 represent?
55: Represents the labor rate
80: Represents the set fee