Algebra 1 STAAR Practice Part 2

Front

What is the value of k if the equation is k + 3 = 0?

Back

-3

Front

What is the y-intercept of the line represented by the equation y = 2x + 12.3?

Back

12.3

Front

Define the term 'slope' in the context of a linear equation.

Back

The slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

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

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x = 0.

Front

If a line has a slope of 2, what does this mean?

Back

For every 2 units the line rises, it moves 1 unit to the right.

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are integers.

Front

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

Back

Set y = 0 and solve for x.

Front

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

Back

m = (y2 - y1) / (x2 - x1) where m is the slope.

Front

What does it mean if two lines are parallel?

Back

They have the same slope but different y-intercepts.

Front

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

Back

y - y1 = m(x - x1), where m is the slope and (x1, y1) is a point on the line.