Algebra Chapter 4 Review

Front

What is the equation for the total cost of a holiday meal for x people, given that it costs $12.50 per person plus a $30 delivery fee?

Back

y = 12.5x + 30

Front

What is the relationship between the slopes of two perpendicular lines?

Back

The slopes of perpendicular lines are opposite reciprocals.

Front

How do you find the y-intercept of a linear equation?

Back

Set x = 0 in the equation and solve for y.

Front

What is the slope of the line represented by the equation y = -1/2x + 5/2?

Back

The slope is -1/2.

Front

If a line has a slope of 2, what is the slope of a line perpendicular to it?

Back

The slope of the perpendicular line is -1/2.

Front

What does f(0) represent in a function?

Back

f(0) represents the y-intercept of the function.

Front

What is the general form of a linear equation?

Back

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

Front

How do you determine if two lines are parallel?

Back

Two lines are parallel if they have the same slope.

Front

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

Back

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

Front

What is the formula to find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).