Midterm Exam Review

Front

What is the y-intercept of the line: y = 2/3x - 4?

Back

-4

Front

What is the first step to solve the equation: 3n - 4 = -2 + 2n?

Back

Subtract 2n from both sides of the equation.

Front

How many solutions will the system of equations have if they are parallel?

Back

No solution.

Front

In the equation y=mx+b, what does the m represent?

Back

Slope.

Front

Slope is known as rise/___?

Back

run.

Front

What is the definition of slope in a linear equation?

Back

The ratio of the rise (change in y) to the run (change in x).

Front

What does the b represent in the equation y=mx+b?

Back

The y-intercept.

Front

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

Back

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

Front

What is the standard form of a linear equation?

Back

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

Front

What does it mean if two lines are perpendicular?

Back

Their slopes are negative reciprocals of each other.