Unit 0 Quiz (Mathematical Models w/ Applications)

Using Order of Operations (or PEMDAS), solve the following equation:

 $x\ =\ 3^2\ +\ 3\left(10-1\right)\ -\ 30\ \div\ 6$  

•  $\frac{1}{2}$  

• 1

• 9

• 16

Tags

CCSS.7.NS.A.3

What is the most accurate definition of a function?

• Repeating inputs and outputs

• Every input (X-value) can only have one output (Y-value)

• Every output (Y-value) can only have one input (X-value)

Tags

CCSS.8.F.A.1

Which of the given relationships does NOT represent a function?

• 
• 
• 
• 

Tags

CCSS.8.F.A.1

Pretend you earn $10 per hour while working at your job. Your income (I) is a function of the number of hours (h) you work.

Choose the answer below that best represents this relationship as a function.

•  $I\ =\ 10\times h$  

•  $h\ =\ 10\times I$  
  

•  $I\ =\ \frac{h}{10}$  

•  $\text{}10\ =\ I\ \times\ h$  

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The new pair of shoes you want to buy have an original price tag of $500. When you visit the store to purchase them, you notice they are marked down by 20%. In other words, they are on sale for 20% off the original price.

What is the new price of the shoes?

HINT: Do not include sales tax.

• $600

• $480

• $400

• $15

Tags

CCSS.6.RP.A.3C