Exam Review #2

Front

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

Back

The slope-intercept form is given by y = mx + b, where m is the slope and b is the y-intercept.

Front

Identify the slope in the equation y = 2x + 4.

Back

The slope (m) is 2.

Front

What does a zero slope indicate about a line?

Back

A zero slope indicates that the line is horizontal.

Front

How do you find the vertex of a quadratic function in standard form?

Back

The vertex can be found using the formula x = -b/(2a) for the quadratic equation ax^2 + bx + c.

Front

What is the vertex of the quadratic function y = x^2 + 4x + 3?

Back

The vertex is (-2, -1).

Front

What does it mean if a line has an undefined slope?

Back

An undefined slope means the line is vertical.

Front

What is the equation of a vertical line that passes through x = -2?

Back

The equation is x = -2.

Front

How do you determine the x-value when f(x) = -2?

Back

You solve the equation f(x) = -2 for x.

Front

If f(x) = x^2 + 2x + 3, what is f(-5)?

Back

f(-5) = (-5)^2 + 2(-5) + 3 = 25 - 10 + 3 = 18.

Front

What is the y-intercept of the line y = -2x + 2?

Back

The y-intercept is 2.