Pre-Calculus 1st Semester Exam

Front

What are all of the x values or inputs in a function called?

Back

Domain

Front

If the equation of f(x) goes through (1, 4) and (4, 6), what points does f^{-1}(x) go through?

Back

(4, 1) and (6, 4)

Front

Back

Perpendicular

Front

What is the result of multiplying the matrices B and A if B = [[47, 30], [9, 5]] and A = [[17, 15], [42, 35]]?

Back

[[47, 30], [9, 5]]

Front

How many ways can the top 9 finishers advance to the finals in a race with 20 participants?

Back

167960

Front

What is the definition of a function?

Back

A relation where each input has exactly one output.

Front

What is the range of a function?

Back

The set of all possible output values (y-values) of a function.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

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