CUA 4 Review - 8th Grade

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 expressed in the form of an equation, typically y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the point where two lines intersect on a graph?

Back

To find the point where two lines intersect, set the equations of the lines equal to each other and solve for the variable. The solution gives the x-coordinate of the intersection, which can be substituted back into either equation to find the y-coordinate.

Front

What is the solution to the equation 2x + 3 = x - 4?

Back

x = -7

Front

What is the solution to the equation x - 17 = -4x + 24.25?

Back

x = 8.25

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the purpose of using variables in equations?

Back

Variables are used in equations to represent unknown values that can change. They allow us to express general relationships and solve for specific values.

Front

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

Back

The equation for a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

Front

What is the significance of the y-intercept in a linear equation?

Back

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

Front

Back

x = 27