Math Lab Unit 4 Review

Front

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

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What does a positive slope indicate about a line?

Back

A positive slope indicates that the line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

A negative slope indicates that the line falls from left to right.

Front

What is the y-intercept of the line y = 2x - 7?

Back

The y-intercept is -7.

Front

What is the constant of proportionality in a direct variation?

Back

The constant of proportionality is the constant factor that relates two variables in a direct variation, often represented as k in the equation y = kx.

Front

If the slope of a line is 2, what does this mean in terms of rise over run?

Back

It means that for every 2 units you rise, you move 1 unit to the right.

Front

What is the equation of a line with a slope of 2 that passes through the point (0, -7)?

Back

The equation is y = 2x - 7.

Front

How do you determine if a graph represents a linear function?

Back

A graph represents a linear function if it forms a straight line.

Front

What is the formula for finding the distance (d) in terms of a constant (f)?

Back

The formula is d = kf, where k is the constant of proportionality.