8th Grade Math STAAR Category 2 Part 3

Front

What is a linear relationship?

Back

A linear relationship is a relationship between two variables that can be represented by a straight line on a graph. It can be described by a linear equation of the form y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Front

What does the slope of a line represent in a graph?

Back

The slope of a line represents the rate of change of the dependent variable (y) with respect to the independent variable (x). It indicates how much y changes for a unit change in x.

Tags

CCSS.8.EE.B.5

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the value of y when x is 0. It is the point where the line crosses the y-axis.

Front

How do you calculate the total distance traveled if you know the speed and time?

Back

Total distance can be calculated using the formula: Distance = Speed × Time.

Tags

CCSS.6.RP.A.3B

Front

What is a function in mathematics?

Back

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

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 two variables. This means that as one variable increases, the other variable increases at a constant rate.

Tags

CCSS.7.RP.A.2D

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in 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 can you determine if a relationship is linear from a table of values?

Back

A relationship is linear if the differences between consecutive y-values divided by the differences between consecutive x-values are constant.

Tags

CCSS.HSF-LE.A.1B

Front

What is the meaning of the term 'rate of change'?

Back

The rate of change describes how much one quantity changes in relation to another quantity. In a linear relationship, it is represented by the slope.

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Front

What is the significance of the coordinates (x, y) in a graph?

Back

The coordinates (x, y) represent a point on the graph, where x is the value of the independent variable and y is the value of the dependent variable.