Test Review

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when it is graphed. It can be written in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What does it mean to solve for x in an equation?

Back

To solve for x means to find the value of x that makes the equation true.

Front

What is the slope in a linear equation?

Back

The slope is a number that describes the steepness and direction of a line. It is calculated as the change in y divided by the change in x.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented by the value of b in the equation y = mx + b.

Front

How do you find the point of intersection of two linear equations?

Back

To find the point of intersection, solve the two equations simultaneously to find the values of x and y that satisfy both equations.

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables. The solution is the set of values that satisfy all equations in the system.

Front

What is the formula for calculating the cost of a taxi ride?

Back

The cost of a taxi ride can be calculated using the formula: Cost = Base Fare + (Cost per Mile * Number of Miles).

Front

How do you set up an equation to compare two different job salaries over time?

Back

To compare two job salaries, set up an equation where the starting salary plus the annual raise multiplied by the number of years is equal for both jobs.

Front

What is the significance of the constant term in a linear equation?

Back

The constant term represents the value of the dependent variable when the independent variable is zero.

Front

What does it mean for two costs to be equal?

Back

Two costs are equal when the total amount paid for each option is the same, allowing for comparison of different pricing structures.