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Secret Codes
Functions and Graphs
Function Notation
Absolute Value
Squares & Squaring
100
When a code has exactly one output for every input, it is called _______________________.
A function
100
Name the test you can use on a graph to determine if it is a function.
The vertical line test
100
If f(x) = 3x +7, what is the value of f(-2)?
1
100
Evaluate the absolute value of -3.
3
100
Solve the equation: x^2 = 9
x = 3 or -3
200
Decode the following word coded using a one-letter shift: TQSJOH
SPRING
200
Name two letter of the alphabet that pass the vertical line test when graphed.
V and W (U has technically has vertical potions)
200
If g(x) = (9/5)x + 32, what is the value of g(-10)?
14
200
Find the value of the expression Ms. O'Brien puts on the board.
-11
200
For what values of y does y = x^2 have two solutions?
y > 0 NOT including zero
300
Describe the code used to code happy into RZKKI.
Letter-shift of plus 10. If # is more than 26, subtract 26.
300
Identify the independent and dependent variables in the following situation: your hourly wage and the amount of money you make in a 40 hour work week.
I- hourly wage D- money you make
300
If h(x) = 3.75(2.5)^x, what is the value of h(-2)?
0.6
300
Solve the equation Ms. O'Brien puts on the board.
x = 11 or -11
300
Solve the equation and explain your solution: -32 = x^2 -7
No solution- x^2 cannot equal a negative value