staar math 8

Front

What is the definition of similar triangles?

Back

Similar triangles are triangles that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, usually represented as 'm'. It is calculated as the ratio of the rise (change in y) over the run (change in x).

Front

How do you determine if a set of ordered pairs represents y as a function of x?

Back

A set of ordered pairs represents y as a function of x if each x-value is paired with exactly one y-value. No x-value can repeat with a different y-value.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way to produce a new shape. Common transformations include translations, rotations, reflections, and dilations.

Front

What is the rule for translating a point 4 units left and 5 units up?

Back

The rule for translating a point (x, y) 4 units left and 5 units up is (x, y) → (x - 4, y + 5).

Front

What is the relationship between the sides of similar triangles?

Back

Front

What is the definition of a function?

Back

A function is a relation that assigns exactly one output (y) for each input (x). It can be represented as a set of ordered pairs, a graph, or an equation.

Front

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

Back

Front

What does it mean for two angles to be complementary?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

What is the Pythagorean theorem?

Back