Algebra 1 STAAR EOC Review Flashcardizz

Front

What is a system of equations?

Back

A set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.

Front

How do you find the x-intercept of a graph?

Back

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

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of a line, calculated as the change in y over the change in x (rise/run).

Front

What does the solution (1,3) represent in a system of equations?

Back

It represents the point where the two equations intersect, meaning x=1 and y=3 satisfy both equations.

Front

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

Back

Use the formula: slope = (y2 - y1) / (x2 - x1).

Front

What is the y-intercept of a line?

Back

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

Front

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

Back

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

Front

How do you graph a linear equation?

Back

Find the y-intercept, plot it on the graph, then use the slope to find another point.

Front

What does the term 'parallel lines' mean?

Back

Lines that have the same slope and never intersect.

Front

What does the term 'perpendicular lines' mean?

Back

Lines that intersect at a right angle (90 degrees), with slopes that are negative reciprocals of each other.