Alg - Unit 4 - Test Review

Front

What does the x-axis represent in a graph of earnings over weeks?

Back

The x-axis represents the number of weeks.

Front

What does the y-axis represent in a graph of earnings over weeks?

Back

The y-axis represents the earnings in dollars ($).

Front

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

Back

Set the equations of the lines equal to each other and solve for the variable.

Front

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

Back

Front

What does a negative slope indicate about a line on a graph?

Back

A negative slope indicates that as one variable increases, the other variable decreases.

Front

How do you determine if a point lies above or below a line on a graph?

Back

Substitute the x-value of the point into the equation of the line and compare the resulting y-value to the y-value of the point.

Front

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

Back

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

Front

What is an inequality in mathematical terms?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.

Front

How can you represent a system of equations graphically?

Back

A system of equations can be represented by plotting each equation on the same graph and finding the intersection points.

Front

What does it mean if a graph is a straight line?

Back

A straight line indicates a linear relationship between the variables.