Algebra Semester Exam

Front

Is (-2,4) a solution to the system?

Back

Solution

Front

Back

Front

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage. If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

Back

C = 15 + 0.20x

Front

How would you write the equation with a slope of 2/3 and a y-intercept of -3?

Back

Front

What is the Range of the graph?

Back

Front

What is the definition of a solution to a system of equations?

Back

A solution is an ordered pair that satisfies all equations in the system.

Front

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

Back

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b).