Linear functions
Exponential functions
Quadratic functions
Rules and methods
Random!
100
Write slope-intercept form
y=mx+b
100
What makes a function exponential?
The variable is the exponent
100
How many forms of quadratic functions did we study?
3
100
What does FOIL stand for?
First, Outer, Inner, Last
100
What is the equation for a horizontal line?
y = a (where a is a number)
200
Define slope
Change of a line over values ; rise over run
200
What does exponential decay mean?
The factor of the function is less than 1
200
What is the difference between factored form and vertex form?
Vertex form has an exponent
200
You can only use the quadratic formula if...?
The quadratic equation is written in standard form and it equals 0
200
In an inequality, what happens when you multiply or divide by a negative number?
The sign flips
300
What is the slope for the following function?
y=-x+3
-1
300
Which one has the highest growth factor?
D
300
Which equation has two solutions?
Only A
300
What is the inverse operation for an exponent of 2?
Square root
300
Describe the parabola for the following function:
y=-2x^2+5
Parabola facing down, y-intercept at (0,5)
400
Evaluate the following function for x = 4
4x-12(x+3)
-68
400
By how much are the values of this function increasing?
4%
400
If you were completing the square, and the constant is moved, what is the next step?
Take half of -12 and square it
400
What is the formula for the x-coordinate of the vertex?
x=-b/(2a
400
If x = 2 and 3x + 5 = y, what is the answer to this system of equations?
(2,11)
500
Describe the graph for the following inequality:
4x+5y<20
Dotted line following the function y = -4/5x+4, shaded to the left
500
Evaluate the following function when x = 2
21.7284
500
double points! What is the equation for this graph?
y=(x-2)(x-6)
500
What is the formula for compound interest?
p(1+r/n)^(rt)
500
The initial value of a car is $35,000. The car will depreciate in value by 14% each year for the next 6 years. Write the equation for the value of the car after 6 years.
y=35000(0.86)^6