Algebra 1 STAAR Practice Part 1

Front

What is a quadratic function?

Back

Front

What is the range of a quadratic function?

Back

The range of a quadratic function is the set of possible output values (y-values). For a quadratic function that opens upwards, the range is all real numbers greater than or equal to the vertex's y-coordinate.

Front

How do you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn through the graph intersects it at most once. This is known as the vertical line test.

Front

What is the vertex of a quadratic function?

Back

Front

What does it mean for a function to have a range of all real numbers greater than or equal to 3?

Back

It means that the lowest value of the function is 3, and it can take any value greater than 3.

Front

What is an exponential function?

Back

Front

What is the general form of an exponential decay function?

Back

Front

What is the difference between exponential growth and exponential decay?

Back

Exponential growth occurs when the base of the exponent is greater than 1, leading to increasing values. Exponential decay occurs when the base is between 0 and 1, leading to decreasing values.

Front

What is the significance of the base in an exponential function?

Back

The base determines the rate of growth or decay. A base greater than 1 indicates growth, while a base between 0 and 1 indicates decay.

Front

How can you identify an exponential function from a set of data points?

Back

An exponential function can be identified if the ratio of consecutive y-values remains constant or if the logarithm of the y-values forms a linear relationship.