Adv. Algebra Final Exam Review

Front

What is the median of the following set of numbers: 345, 400, 110, 640?

Back

The median is $372.50.

Front

Are the functions f(x) = 2x + 3 and g(x) = (x - 3)/2 inverses of each other?

Back

Yes, they are inverses.

Front

What is the range of a set of numbers?

Back

The range is the biggest number minus the smallest number.

Front

What is the probability of flipping a coin and getting heads?

Back

The probability is 1/2.

Front

In an exponential function, what does the 'a' represent?

Back

The 'a' represents the Y-INTERCEPT.

Front

What is the formula for the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

What is the quadratic formula used for?

Back

The quadratic formula is used to find the roots of a quadratic equation: x = (-b ± √(b² - 4ac)) / 2a.

Front

Define a function in mathematics.

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the difference between independent and dependent variables?

Back

Independent variables are manipulated, while dependent variables are measured.

Front

What does it mean for two events to be independent in probability?

Back

Two events are independent if the occurrence of one does not affect the probability of the other.