Algebra 1 Semester 1 Final Review

Front

What is the DOMAIN of a function?

Back

The domain of a function is the set of all possible input values (x-values) for which the function is defined. For example, the domain of the function f(x) = 1/x is all real numbers except x = 0.

Front

What are the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are opposite (sign) reciprocals. If the slope of one line is m, the slope of the line perpendicular to it is -1/m.

Front

Write the equation of a line PARALLEL to 5x + 2y = 1 that passes through the point (-2, -3).

Back

Front

What type of slope does a horizontal line have?

Back

A horizontal line has a slope of zero.

Front

What type of slope does a vertical line have?

Back

A vertical line has an undefined slope.

Front

What is the slope of a line that rises from left to right?

Back

The slope of a line that rises from left to right is positive.

Front

What is the slope of a line that falls from left to right?

Back

The slope of a line that falls from left to right is negative.

Front

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

Back

Front

How do you find the y-intercept of a line?

Back

To find the y-intercept of a line, set x = 0 in the equation of the line and solve for y.

Front

What is a system of inequalities?

Back

A system of inequalities is a set of two or more inequalities with the same variables. The solution is the region where the graphs of the inequalities overlap.