Illustrative Math Algebra 2 Unit 3

The function y = 125(1.13)^x represents Mr. Gantz's recent investments where x is measured in years.  Which is NOT true?

• Mr. Gantz initial invested $125

• Mr. Gantz's money grows by 13% per year

• After 4 years Mr. Gantz will have about $203.81

• Mr. Gantz earns more money in year one than in year 5

Write the linear inequality in standard form for this situation: In order to raise money to attend upcoming competitions, the Math Pentathalon team is selling apple cider and hot chocolate. They hope to make at least $240 by selling hot chocolate for $1 a glass and hot apple cider for $2 a glass.

• x + 2y < 240

• x + 2y > 240

• x + 2y ≤ 240

• x + 2y ≥ 240

Write the linear inequality in standard form for this situation: Ms. Savva is ordering pizzas and breadsticks for a school party and has a budget of no more than $81. An order of breadsticks costs $7 and a pizza costs $13. 

• 7x + 13y < 81

• 7x + 13y ≥ 81

• 7x + 13y ≤ 81

• 7x + 13y > 81

What is the solution to this system of equations? (Use the graph to find your answer).

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Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Is the equation linear, exponential, or quadratic?
y = 2x+ 4

• Linear

• Exponential

• Quadratic

• None of the above

It is the set of all x-coordinates.

• relation

• function

• domain

• range

• function

• not a function

• constant function

• identity function

• absolute value function

• piecewise function

• function

• not a function