Ch.3 Test Review

Front

What is the y-intercept of the linear equation 9x + 3y = -18?

Back

(0, -6)

Front

What is the slope in the equation y = 4x + 3?

Back

4

Front

What is the y-intercept in the equation y = (-2/3)x + 8?

Back

8

Front

Define y-intercept.

Back

The y-intercept is the point where a line crosses the y-axis, represented as (0, y).

Front

What is the standard form of a linear equation?

Back

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

Front

How do you find the slope from 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 a horizontal line.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates a vertical line.

Front

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

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

Identify the slope and y-intercept in the equation y = 2x - 5.

Back

Slope: 2, Y-intercept: -5.