8th Grade KPREP Review

Front

What is the formula to find the length of a missing side in a right triangle?

Back

Use the Pythagorean theorem: a² + b² = c², where c is the hypotenuse.

Tags

CCSS.8.G.B.8

Front

What does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x, indicating the steepness and direction of the line.

Tags

CCSS.8.EE.B.5

Front

What is an irrational number? Give an example.

Back

An irrational number cannot be expressed as a fraction of two integers. Example: √45.

Tags

CCSS.8.NS.A.1

Front

What is a function in mathematics?

Back

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

Tags

CCSS.8.F.A.1

Front

How do you determine if a set of values is a function?

Back

Check if any x-value is repeated with different y-values.

Tags

CCSS.8.F.A.1

Front

What is the distance formula in a coordinate plane?

Back

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

Tags

CCSS.HSG.GPE.B.7

Front

What is the definition of a diagonal in geometry?

Back

A diagonal is a line segment that connects two non-adjacent vertices of a polygon.

Front

What is the significance of an undefined slope?

Back

An undefined slope indicates a vertical line, where x does not change.

Tags

CCSS.8.EE.B.5

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates a horizontal line, where y does not change.

Tags

CCSS.8.EE.B.5

Front

What is the relationship between the sides of a right triangle?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Tags

CCSS.8.G.B.8