Basics of Algebra Review

Basics of Algebra Review

Go get some paper, pencil/pen, and green, red, and yellow markers/pencils/pens/crayons

What is an expression?

Open Ended

Write an expression to represent the difference of a number n and 3.

Open Ended

Evaluate the expression

 $n\div4$  when n=20

What is an equation?

Open Ended

Write the equation: a number n increased by 7 is 12.

Multiple Choice

Two weeks ago the average temperature in Michigan was

 $-10\degree C$  and last week the average temperature in Michigan was  $-8\degree C$  .

Compare the integers -10      -8

• -10<-8

• -10>-8

• -10=-8

Open Ended

Two weeks ago the average temperature in Michigan was

−10°C

and last week the average temperature in Michigan was

−8°C

Interpret your answer to the last problem (-10<-8) in the context of this situation.

Multiple Choice

Compare

• |-10| <10

• |-10|>10

• |-10|=10

Open Ended

Graph the points (4, -2) and (4, 6). Tell the distance between the two points.

Use Algebra Tiles to represent 3(x+2)

Open Ended

Use the distributive property to write an equivalent expression for 3(x+2)

Open Ended

Factor the expression 5x-15

Write an equation for each tape diagram.

Solve each equation that you wrote.

Open Ended

You have to be at least 10 years old to ride the rollercoaster. Write an inequality that represents the age "a" of the people who can ride the rollercoaster.

Make a graph of the inequality

 $a\ge10$  

Open Ended

The longer Kaden studies for his test, the higher he scores. Let t be the time Kaden studies. Let s be his score.

Which variable is dependent?

Miss VK is going to Australia where she will see koalas. She will see 3 koalas each day.

1. Identify the dependent and independent variables.

2. Make a chart to show how many koalas Miss VK will see if she is in Australia for 1, 2, 3, or 4 days.