Show:
Linear Relations and Functions
Systems of Linear Equations/Inequalities
The Nature of Graphs
Polynomial and Rational Functions
Trig Functions
100

State the domain and range of the following relation. Also state if it is a function.

{(4,2), (3,9), (7,5)}

Domain: [4,3,7]

Range: [2,9,5]

Function?: Yes

100

Use the elimination method to solve the system of equations:

4x+2y = 18

3x+8y = 24

(5.05, -1.1)

100

Determine if the graph of y = x2 + 3 is symmetric with respect to the x-axis or y-axis

The graph is symmetric with respect to the y-axis

100

State the degree and leading coefficient of the polynomial 

5x3 - 2x2 + 26x - 9

Leading coefficient: 5

Degree: 3

100

What is the angle measure of 9.7 rotations counterclockwise?

3492 degrees

200

Evaluate the function for the given value:

f(3) if f(x) = 2x + x2 - 9

6

200

Use the substitution method to solve the system of equations:

6x-12y = 34

x-y = 12

(18.33, 6.33)

200

Is the following function even, odd, or neither?

6x5 - 3x4 + 83 + 12 -17

The function is odd

200

Solve 4x2 + 13x - 7 = 0 by using quadratic formula

x = -7.07, -18.93

200

Find one positive and one negative angle that are coterminal with 64 degrees

Positive angle: 424

Negative angle: -296

300
Given f(x)= 5x2 + 3 and g(x)= x - 2 find the function

(f + g)(x)

5x2 + x + 1

300

If A =| 4 7 1| and B =  |2  9  6| what is AB?

         | 3 5 1|              |10 -2 8|


*These are matrices

Undefined. They do not have the same # of rows and columns, therefore the product does not exist.

300

Determine if the graph 4/x2 has infinite discontinuity, jump discontinuity, or point discontinuity

The graph has infinite discontinuity

300

Solve x = √-x+2  -4

x = -7 or -2

300

If sin x = 2/3 find csc x

csc x = (1)/(2/3) or 1.5

400

Write an equation in slope-intercept from for a line with a slope of 5/8 and a y-intercept of -3

y = 5/8x - 3

400

Find the value of |12 -2|

                         |3  5 |

66

400

What is the end behavior of polynomial function -x3+3?

Negative, odd

400

Find the type of polynomial function that could be used to represent equation y = 8x2 + 2x - 3

When graphed, the scatterplot only changes directions once. This means a quadratic function would be best.

400

Find the values of the 6 trig functions in standard pos. with coordinates (2,16) lying on its terminal side

sin x = 16/16.2  cos x = 2/16.2 or 1/8.1 

tan x=16/2 or 8  csc x=16.2/16  

sec x= 16.12/2 or 8.06   cot x=2/16 or 1/8