8th Grade Math STAAR Review

Front

What is a dilation in geometry?

Back

A dilation is a transformation that alters the size of a figure but keeps its shape the same. It is defined by a center point and a scale factor.

Tags

CCSS.8.G.A.3

Front

How do you convert a number to scientific notation?

Back

To convert a number to scientific notation, move the decimal point to create a number between 1 and 10, then multiply by 10 raised to the power of the number of places the decimal was moved.

Front

What is the formula for the volume of a cylinder?

Back

The volume V of a cylinder is given by the formula V = πr²h, where r is the radius and h is the height.

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Front

What is a function in mathematics?

Back

A function is a relation that assigns exactly one output for each input. In ordered pairs, no x-value can repeat.

Tags

CCSS.8.F.A.1

Front

What does it mean for a graph to be proportional?

Back

A graph is proportional if it passes through the origin (0,0) and has a constant ratio between the y-values and x-values.

Tags

CCSS.7.RP.A.2D

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small in a compact form, using powers of ten.

Tags

CCSS.8.EE.A.3

Front

How do you identify a function from a set of ordered pairs?

Back

To identify a function, check that each x-value in the ordered pairs is unique; no x-value should correspond to more than one y-value.

Tags

CCSS.8.F.A.1

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Tags

CCSS.8.G.A.3

Front

What is the relationship between volume and capacity?

Back

Volume measures the amount of space an object occupies, while capacity refers to the maximum amount a container can hold.

Front

What is the difference between a linear function and a non-linear function?

Back

A linear function has a constant rate of change and graphs as a straight line, while a non-linear function does not have a constant rate of change and can curve.

Tags

CCSS.8.F.A.3