Before you start your test, what TWO things should you do with the calculator?
1. Reset it 2nd + 7 1 2
2. Mode > Stat Diagnostics ON
What do the words sum, difference, product, and quotient mean?
Sum = Add, Difference = Subtract, Product = Multiply, Quotient = Divide
Is this graph a function?
No, does not pass the vertical line test
Which point is not a solution to the equation 2x-6y=4
A. (2,0) C. (8,2)
B. (0,2) D. (-4,-2)
B
True or False: The percent of bike riders who are sophomores is higher than the percent of car riders who are seniors.
True
How do I make a fraction? What buttons?
Alpha > y= > enter
What is the average rate of change formula?
{y^2-y^1}/{x^2-x^1}
Odd, Even, or Neither?
Odd
Athletes are linear because it changes by equal ______ over equal intervals. Gallons of water is exponential because it changes by equal ______ over equal intervals.
differences, factors
Label each of the following with its correct form and what information we get from each form
(x+5)(x-2)
x^2-10x+4
(x+9)^2-121
Factored- x-intercepts
Standard- y-intercept
Vertex- minimum or maximum
If you were given an equation and you needed the table of points (for example, for average rate of change), how would you get there? (Two Steps)
Plug the equation into y=, 2nd Graph
What is the formula you need to know when completing the square?
({b}/2)^2
What are the zeros of the graph?
x=-4 and x=0
Based on the equation y=40(1.056)^x what is the rate of increase as a percent?
5.6% increase
Consider the polynomial function f(x)=(x+3)(x-2)(x+1). Which interval describes the graph as negative?
A. x>2 C. -3<x<-1
B. x<-6 D. -1<x<2
D (negative is below the x-axis)
How do I get the linear, quadratic, and exponential equations?
STAT CALC linear: 4, quadratic: 5, exponential 0
What is the residual formula?
residual = observed - predicted
If two lines cross on the graph, how many solutions?
If the lines never cross, how many solutions?
If the line is on top of one another, how many solutions?
one solution
no solutions
infinitely many solutions
The expression 3+2(x-5)^2 models the height of a ball after x seconds. The constant in the simplified form of the expression represents the initial height, in feet, of the ball. What is the initial height of the ball?
53 feet
Carl planned to save $1,075 from his summer job. Due to unexpected expenses, he was only able to save $850. The percent error to the nearest hundredth of a percent is ______ %.
26.47%
What is the correlation coefficient in your calculator?
r
What is the percent error formula?
abs{{observed-predicted}/{observed}}*100
What is slope withe correct units?
5 dollars/week
What is the product of
(x-4)(3x^2+5x-2)
3x^3-7x^2-22x+8
How many minutes are in two days? (Conversion question)
2880 minutes