Algebra 2 Jeopardy!

Linear Functions

100

Find the inverse of f(x) = 2x + 8.

f^-1(x) = (x-8)/2

Quadratic Functions

100

Find the inverse of f(x) = x² + 3

f^-1(x) = (x-3)^0.5

OR

f^-1(x) = -(x-3)^0.5

Exponential Functions

100

Find the inverse of f(x) = 5^x + 3

f^-1(x) = log₅(x-3)

Inequalities

100

If x is a number between 0 and 10, excluding those two numbers, how would you write this out in interval notation?

Interval notation: (0, 10)

Bonus: Set notation: {x | 0 < x < 10}

Word Problem (Inequalities)

100

Aaron needs a 90 score average or more to get an A in his History class. Here are the scores of his two previous tests:

(a) 89

(b) 94

(c) ?

What is the minimum score he needs for his third test to get an A in the class?

(89+94+x)/3 >/ 90

x = 87