Problem Solving Final 1

Which point below is NOT part of the solution set?

• (0, 0)
• (-10, -10)
• (-1, 5)
• (5, 20)

Which of the following equations match the given graph?

• x ≥ -1
• x ≤ -1
• x > -1
• x < -1

• y ≤ 2x - 4
• y ≥ 2x - 4
• y < 2x - 4
• y > 2x - 4

Find the slope of the line.

• 2/4

• 1/2

• -2/4

• -1/2

• -2

When graphing b < 6 would you use an open or closed circle?

• Open
• closed

You flip an inequality symbol when you...

• subtract
• multiply and divide only
• multiple by a negative number
• multiple or divide by a negative number

Pick the correct inequality.

• A
• B
• C
• D

Solve and graph the inequality.
77 ≤ 5 + 8n

• A
• B
• C
• D

Lea needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes.

Which of the following inequalities can be used to determine the least number of cars she can wash to buy the headphones?

• 30x+14 ≤ 240

• 14x+30 ≤ 240

• 30x+14 ≥ 240

• 14x+30 ≥ 240

What does 'b" represent in y=mx+b

• y-intercept

• banana

• nothing

• slope