8th Grade KPREP Review

Front

What is the distance between two points J and K if it is given as 8.2 units?

Back

The distance between points J and K is 8.2 units.

Front

What defines a function in mathematics?

Back

A function is a relation where each input has exactly one output.

Front

How do you find the missing angle in a triangle if two angles are known?

Back

Use the fact that the sum of angles in a triangle is 180°.

Front

How do you express 0.0005 in scientific notation?

Back

0.0005 is expressed as 5 x 10^(-4) in scientific notation.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others.

Front

What is the formula to calculate the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²).

Front

What is the definition of alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie on opposite sides of the transversal and inside the two lines.

Front

How do you determine if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180°.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers as a product of a coefficient and a power of 10.