Solving Equations

Solve.

3(x+4)=2x+x+12

• x=3

• x=0

• Infinite solutions

• No Solution

Solve

 $\frac{1}{6}x=-7$  

•  $\frac{-6}{7}$  

•  $\frac{6}{7}$  

• -42

• 42

Which of the following equations has no solution (Check all that apply)

• 3x + 4 = 3(x + 2)

• 4x + 5x + 2= 9(x+1)

• 3x + 6 = 3(x + 2)

• x + 3 = x

Define the variable and write the equation:

Amy went shopping. She has $36 dollars to spend. She wants to buy a dress for $20 and shirts for $4 each. How many shirts can she buy?

• Let x = number of shirts, 20x + 4= 36

• Let x = number of dresses, 20x + 4 = 36

• Let x=number of shirts, 20 + 4x = 36

• Let x = number of dresses, 20 + 4x = 36

Is the following set a function:

[(2,3), (3,4), (4,4),(5,-3)]

• No, the y value of 4 repeats

• No, all the x values are different

• Yes, each x value has only 1 y value

• Not enough information

What is the domain and range of the following set:

[(2.-3), (3,2), (4,-5), (-2,-3)]

• D: {-5,-3,-2,2,3,4}

  R: {-5,-3,-2,2,3,4}

• D: {-5,-3,2}

  R: {-2,2,3,4}

• D: All real numbers

  R: {-5,-3,2}

• D: {-2,2,3,4}

  R: {-5,-3,2}