Quiz Review 1.1-1.3

Translate the following verbal sentence into an algebraic expression: "The sum of a number and 7." (Use x as your variable.)

Translate the following verbal sentence into an algebraic expression: "6 less than 4 times x." (HINT: Remember the difference between 'less' and 'less than'!)

Translate the following algebraic expression into a verbal phrase: 

 $4x^2-3$  

Translate the following algebraic expression into a verbal sentence: "7x+1"

Evaluate

 $7^3$  

Evaluate

 $6^2-12\div2\cdot5$  

Follow the order of operations. What is your first step? $4+\left[\left(5+1\right)^2+3\right]-1$  

• Add (5 +1)

• Square 1

• Add 3

• Minus 1

Follow the order of operations. What is your second step? $4+\left[\left(5+1\right)^2+3\right]-1$  

• Add (5 +1)

• Square 6^2

• Add 3

• Minus 1

 $If\ x=5,\ y=3,\ z\ =-2,\ evaluate\ y\left(2x-z\right)$  

Evaluate. You can use a calculator to help you.

 $If\ x=5,\ y=-7,\ z=2,\ substitute\ into\ \frac{4x+7y^2}{z^2-5x}$  

Substitute the values correctly. Do not evaluate the answer.

•  $-\frac{121}{7}$  

•  $\frac{45+7-7^2}{2^2-55}$  

•  $\frac{4\left(5\right)+7\left(-7\right)^2}{\left(2\right)^2-5\left(5\right)}$  

•  $\frac{4\left(5\right)+7\left(7\right)^2}{\left(2\right)^2-5\left(7\right)}$