Algebra 1 STAAR - Linear Review

Front

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

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates that the line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates that the line is vertical.

Front

Write the point-slope form of a line given a point (x1, y1) and slope m.

Back

Point-slope form: y - y1 = m(x - x1)

Front

If a line has a slope of 2, what does this mean in terms of rise over run?

Back

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

Front

What is the slope of the line that passes through the points (3, 4) and (3, 8)?

Back

The slope is undefined because the x-coordinates are the same.

Front

How do you convert the equation y - 3 = 2(x + 4) into slope-intercept form?

Back

y = 2x + 11 (slope-intercept form is y = mx + b)