Sto Algebra 2

Is this a max or min?

• max

• min

• cannot be determined

What is the vertex of y=x²+4x+3?

**hint, type the equation in your calculator, look at the graph... menu, analyze graph, max/min (depending on the picture)

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

• h = 2C + 15

• C = 15h + 2

• h = 15C + 2

• C = 2h + 15

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 15 + 0.20x

• C =15 (0.20x)

• C = 15 + x + 0.20

• C = 0.20 + 15x

Which equation represents this graph?

Write the equation of the line.

Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and Large cups for $2.50. If Ashley sold a total of 155 cups for $265, which system could be used to determine the number of small (x) and large (y) cups she sold?

• x + y = 265 
  1.25x+2.5y=155 

• x + y = 155
  2.5x+1.25y=265

• x + y = 265
  2.5x+1.25y=155

• x + y = 155
  1.25x+2.5y=265

Academy sports equipment store is having a sale on bike helmets and water bottles.  One bike club purchased 10 helmets and 2 water bottles for $155.  Another bike club purchased 12 helmets and 3 water bottles for $189.  Which system of equations could be used to determine the cost of a bike helmet and a water bottle?

• 2h + 10b = 155
  12h + 3b = 189

• 10h + 2b = 189
  12h + 3b = 155

• 10h + 2b = 155
  12h + 3b = 189

• 10h + 3b = 155
  12h + 2b = 189

22(g-1)=2g+8

**hint, sto---x each answer choice (one at a time) and type in the equation on your calculator. True = your answer**

• 1.5

• All Real Numbers

• 11

• 22

-2(2f-4)= -4(-f +2)

**hint, sto---x each answer choice (one at a time) and type in the equation on your calculator. True = your answer**

• 2

• 16

• -8

• No Solution