Review Of Learning Test

Functions & Linear Functions

100

How do you Identify a Function from a non-function?

A. Slope Intercept form

B. Vertical Line test

C. There is no way to identify without a graph

B. Vertical Line test

200

There is a wavy line on the graph that continuously goes down without overlapping, which description best describes the phenomenon?

A. Non-linear, Function

B. Linear, Not a function

C. Non-linear, Not a function

D. Linear, Function

A. Non-linear, Function

300

There is a horizontal line on the graph, which definition best describes this phenomenon?

A. Function

B. Non-Function

C. Undefined

A. Function

400

There is a vertical line on the graph, which definition best describes this phenomenon?

A. Function

B. Non-Function

C. Undefined

B. Non-Function

500

If there is a straight positive line on a graph, is it a Linear Function?

Yes! (This should be an easy 500 points, good job!)

Slope Intercepts

100

What is the slope for these two points on the graph? (-5,9) & (-4,20)

-4 - -5 (this is -4+5 too) = 1

20 - 9 = 11

The Slope is 1/11 or 0.09!

200

Find the slope-intercept form of the following information. (The Slope-intercept form is y=mx+b)

y-intercept = -22

(-4,16) & (5,-11)

5--4 (this can also be 5+4) = 9

-11 - 16 = -27

9/-27 = -3

y = -3x - 22

300

For this question, I will write down a random slope-intercept form on my whiteboard and the answer will be revealed there, good luck!

Look at the circled answer on the whiteboard, did you mess up? If so, explain where you messed up and what you should've done instead to show your understanding, we can always do more review after this if needed!

Integers

100

When multiplying or dividing a negative by a negative the result is a...

Positive! (Think about when you draw a plus sign, there are basically two negative lines you're drawing which shows how two negatives make a positive!)

200

When multiplying or dividing a positive and a negative, the result is a...

Negative! (Think about this as the negative will always overpower the positive in multiplication and division.)

300

(True or False) When coming across an equation where two negatives touch, you can automatically think of just subtracting.

Ex: 6--4 = -2

False! When coming across an equation where two negatives touch, you can automatically think of adding, remember that the two negatives form together to create a positive look! - & | make + how cool there are two negatives in a positive!