Fall 2021 Algebra 1A EOC #1

Select all the function types whose graphs consist ONLY of lines.

• Linear Functions

• Constant Functions

• Quadratic Functions

• Exponential Functions

• Linear Absolute Value Functions

David rode his bike to the park. After staying for a while, he continued his ride to the grocery store. The graph shown represents this situation.

What is the independent quantity in this situation?

• Distance from Home (miles)

• Time (minutes)

David rode his bike to the park. After staying for a while, he continued his ride to the grocery store. The graph shown represents this situation.

What is the dependent quantity in this situation?

• Distance from Home (miles)

• Time (minutes)

David rode his bike to the park. After staying for a while, he continued his ride to the grocery store. The graph shown represents this situation.

How far away from home is David after 45 minutes?

• 1 mile

• 1.5 miles

• 2 miles

• 2.5 miles

David rode his bike to the park. After staying for a while, he continued his ride to the grocery store. The graph shown represents this situation.

How long is David in the grocery store? (AKA how long is his distance from home constant?)

• 15 minutes

• 25 minutes

• 40 minutes

• 30 minutes

Determine whether or not the relationship represented is a function.

• Function

• Not a Function / Relation

Determine whether or not the relationship represented is a function.

• Function

• Not a Function / Relation

Write an explicit arithmetic formula for the sequence below.

12.6, 5.6, -1.4, -8.4, -15.4, ...

• $a_n=a_{n-1}-7$

• $a_n=a_{n-1}+7$

• $a_n=12.6+7\left(n-1\right)$

• $a_n=12.6-7\left(n-1\right)$

Gregory has agreed to donate $250 to Spring Valley High School for its library. In addition, he will donate $5 for every book read by a Spring Valley High student over the summer.

Write a function that represents the amount of money Gregory will donate depending on the number of books read.

• $f\left(x\right)=5x+250$

• $f\left(x\right)=250x+5$

• $f\left(x\right)=5x-250$

• $f\left(x\right)=-5x+250$

 $A=\frac{1}{2}bh$  

Which equations are equal or equivalent to the formula above? Select ALL that apply.

•  $b=\frac{2A}{h}$  

•  $b=\frac{A}{2h}$  

•  $h=\left(\frac{1}{2}\right)\frac{A}{b}$  

•  $h=\frac{2A}{b}$