Exam Review #2

Front

Write the equation of the line with slope -2 through the point (7, -1).

Back

y = -2x + 13

Front

What is the DOMAIN of the graph?

Back

The domain is (-∞, +∞).

Front

What is the y intercept for the equation: y = -8x^2 + 3x - 7?

Back

The y-intercept is (0, -7).

Front

What is f(5) for the function f(x) = 2(x - 7)?

Back

f(5) = -4.

Front

Write in slope-intercept form: -3x + 4y = 12.

Back

y = \frac{3}{4}x + 3.

Front

Define slope in the context of a linear equation.

Back

Slope is the measure of the steepness of a line, calculated as the change in y over the change in x (rise/run).

Front

What is the standard form of a linear equation?

Back

The standard form is Ax + By = C, where A, B, and C are integers.

Front

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

Back

Set x = 0 in the equation and solve for y.

Front

What does it mean for a function to be continuous?

Back

A function is continuous if there are no breaks, jumps, or holes in its graph.

Front

What is the quadratic formula?

Back

The quadratic formula is x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}.