Math II (2Q): Unit VIII Practice Test - (Square Root Functions)

Front

What is an inverse variation?

Back

An inverse variation is a relationship between two variables where an increase in one variable results in a decrease in the other variable, and vice versa.

Front

What is the square root of 20?

Back

The square root of 20 is approximately 4.47.

Front

If y varies inversely as x, and y = 32 when x = 3, what is the formula for this relationship?

Back

The formula is y = k/x, where k is a constant. Here, k = 32 * 3 = 96.

Front

What is the solution to the equation x^2 = 9?

Back

The solutions are x = 3 and x = -3.

Front

What does the graph of a square root function look like?

Back

The graph of a square root function is a curve that starts at the origin (0,0) and increases gradually, only existing in the first quadrant.

Front

What is the value of x if y = 15 when y varies inversely as x and y = 32 when x = 3?

Back

x = 32/5.

Front

What is a radical equation?

Back

A radical equation is an equation in which a variable is contained within a radical (square root, cube root, etc.).

Front

What is the definition of a function?

Back

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

Front

What is the value of x in the equation √x = 4?

Back

x = 16.

Front

What does it mean for a function to be linear?

Back

A linear function is a function that graphs to a straight line, represented by the equation y = mx + b.