8th grade Math STAAR Practice Category 1 & 2

Front

What is a solution to a system of linear equations?

Back

An ordered pair (x, y) that satisfies both equations in the system.

Front

What does the y-intercept represent in a linear equation?

Back

The value of y when x is 0; it indicates where the line crosses the y-axis.

Front

How do you determine if a table represents y as a function of x?

Back

Each input (x-value) must correspond to exactly one output (y-value).

Front

What is the slope of a line?

Back

The rate of change of y with respect to x, often represented as 'm' in the equation y = mx + b.

Front

What does it mean for y to be a function of x?

Back

For every x-value, there is exactly one corresponding y-value.

Front

How can you find the initial value in a linear relationship?

Back

It is the y-intercept of the graph, representing the starting point before any changes occur.

Front

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

Back

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

Front

What is the process to solve a linear equation?

Back

Isolate the variable on one side of the equation using inverse operations.

Front

What does it mean for two lines to intersect on a graph?

Back

The point of intersection represents a solution to the system of equations formed by the two lines.

Front

How do you graph a linear equation?

Back

Identify the y-intercept, use the slope to find another point, and draw a line through the points.