Vocabulary
Linear Functions
Quadratic Functions
Exponential Functions
General Functions
100

the steepness of a line

slope

100

What is the slope of y = -30x + 18? 

-30

100

the standard form for quadratic functions

y = ax^2 + bx + c

100

the formula for exponential functions

y = a(b)^x

100

Is this a function? Why or Why not?


no, fails VLT

200

two words that also mean the y-intercept

initial value

200

Write an equation of the line with (2,5) and m = -4 

y = -4x + 13

200

draw a quadratic function with a maximum

(see whiteboard)

200

What value of b makes it an exponential growth function?

values greater than 1

200

What is the range?


-4 < y < 4

300

known as roots, zeros, or solutions

x-intercepts


300

Write an equation of the line through (-5,7) and (0,8)

y = 0.2x + 8

300
What is the vertex and axis of symmetry of y = 3x^2 - 18x + 1

AOS: x =3

Vertex: (3, -26)

300

draw an exponential decay function

(see whiteboard)

300

Evaluate f(x) = -2x + 7 when x = 4

-1

400

functions that have a maximum or minimum, and an exponent of a 2

quadratic function


400

The function y = 1.05(2x + 6) can be used to determine the total cost, y, for purchasing a candle stand for x candles, after tax. What is the rate of change of the cost with respect to the number of candles?

2.10 per candle

400

Convert from standard form to vertex form (y = a(x-h)^2+k)

y = 3x^2-6x-11

y = 3(x-1)^2-14

400
Given: y = 25(0.23)^x  is the function growth or decay?

decay

400

What is x when f(x) = 4

x = 2

500

what is the fastest growing or decaying function

exponential function

500

A kayak rental company at a campground charges its customers $10 per hour for renting a kayak and a fixed amount of $2 for a bag to keep belongings dry. A customer rents the kayak for h hours and chooses one bag. Which equation can be used to find the total amount, C, in dollars, the customer will be charged?

y = 10x + 2

500

Describe the transformations of: y = -(x+7)^2 - 4

flips, left 7, down 4
500

Write the equation for the scenario: The cost of private school is $12,000 and is increasing by 19% each year. What will the cost be at the private school after 5 years? 

y = 12000(1+.19)^5

500

Is this table linear or exponential? Write the equation. 

Linear, y = 2x + 3

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