Extra Practice-Midterm Review for Algebra I

Front

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

Back

Negative

Front

What is the point-slope form of a line?

Back

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

Front

How do you solve the equation 12x - 15 = 3(2x + 3)?

Back

x = 4

Front

What is half of a number c?

Back

c ÷ 2

Front

How do you find x if f(x) = 35 and f(x) = 2x + 10?

Back

x = 12.5

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a zero slope indicate about a line?

Back

The line is horizontal.

Front

What does an undefined slope indicate about a line?

Back

The line is vertical.

Front

How do you convert the equation y = mx + b to point-slope form?

Back

Use a point (x1, y1) on the line: y - y1 = m(x - x1).

Front

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

Back

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