8th Grade MATH STAAR

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is one where the ratio between x and y values is not constant. This means that as x changes, y does not change in a consistent manner.

Tags

CCSS.7.RP.A.2D

Front

How do you determine if a relationship is proportional using a table?

Back

A relationship is proportional if the ratio of y to x is the same for all pairs of values in the table.

Tags

CCSS.7.RP.A.2A

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How do you find the slope between two points?

Back

The slope (m) between two points (x1, y1) and (x2, y2) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

What is dilation in geometry?

Back

Dilation is a transformation that alters the size of a figure but keeps its shape, using a scale factor and a center of dilation.

Tags

CCSS.8.G.A.3

Front

What is a scale factor in dilation?

Back

The scale factor is a number that scales, or multiplies, the dimensions of a figure during dilation. A scale factor greater than 1 enlarges the figure, while a scale factor less than 1 reduces it.

Tags

CCSS.8.G.A.3

Front

How do you find the coordinates of a dilated point?

Back

To find the coordinates of a dilated point, multiply the original coordinates by the scale factor.

Tags

CCSS.8.G.A.3

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables, with points representing individual data points.

Front

How can you make predictions using a scatterplot?

Back

You can make predictions by observing the trend in the scatterplot and estimating the value of one variable based on the value of another.

Front

What does it mean for a function to be linear?

Back

A function is linear if it can be represented by a straight line on a graph, meaning it has a constant rate of change.

Tags

CCSS.8.F.A.3