8th grade module 4 test

Front

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

Back

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

Front

What does the slope of a line represent?

Back

The slope of a line represents the rate of change of y with respect to x, indicating how steep the line is.

Front

What is the first step in solving a system of equations using the substitution method?

Back

The first step is to get either variable by itself in one equation.

Front

How do you find the point of intersection of two lines?

Back

To find the point of intersection, solve the system of equations formed by the two lines to find the values of x and y.

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables.

Front

What does it mean if two lines are parallel?

Back

If two lines are parallel, they have the same slope and will never intersect.

Front

What does it mean if two lines are perpendicular?

Back

If two lines are perpendicular, the product of their slopes is -1.

Front

How can you determine if a point is a solution to a system of equations?

Back

Substitute the x and y values of the point into both equations. If both equations are true, the point is a solution.

Front

What is the y-intercept of a line?

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

What is the x-intercept of a line?

Back

The x-intercept is the point where the line crosses the x-axis, found by setting y = 0 in the equation of the line.