Quadratic Functions
Quadratic Functions (Finding Zeros)
Linear Functions
Graphing Functions
Exponential Functions
100
What is the axis of symmetry of y=x^2-6x+5?
x=6/3 OR x=3
100
What is the zero in this equation: x^2+6x+9?
(-3,0)
100
Find the slope and Y-intercept for: y = 3x + 7
m=3
Y=7
100
What would the formula for graphing functions?
F(x)
100
How can you tell if your problem is exponential?
The independent variable is usually an exponent, while the base is constant.
200
2x^2 − 12x + 16=?
The vertex is (3,−2), and the axis is x=3
200
Formula: 
Solve: 5x2 + 6x + 1 = 0
x = −0.2 OR x = −1
200
Which one of these are Linear?
A. 3√x − y = 6
B. y = 3x − 6
C. y2 − 2 = 0
B.
200
What are the 4 ways to solve system of equations?
-Graphing
-Substitution
-elimination
-matrices
200
In the year 1980, company A's sales were $5000 and company B's were $1400. Company A's sales grew by $400 each year. Company B's sales doubled each year.
Define a function A(t) that shows company A's sales t years after 1980
$5000+$400t
(t= years after 1980)
300
Solve: F(x)=2x^2-16x+7
(-4,39)
300
Solve: 2x+3y=6
y=-2x-2
300
y = 25 + 5x = 40
x=3
y=0
300
Graph: 2x+7
(-3.5,0)
300
A new luxury automobile costs $50,000. Assumes it loses it value by $3,000 dollars each year.
Assume instead that the value decreases by 1/10 each year. Write an exponential function describing the car's value when it is x years old.
$50,000-($50,000x1/10)x