12/16 Warm-Up Math 8

Front

What is the y-intercept in the equation: y=-4x-5?

Back

The y-intercept is -5.

Front

Solve for a in the equation: 22 + 2a = 37 + 6 + a.

Back

a = 21.

Front

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

Back

The slope is 4.

Front

Solve the equation: 2x - 16 = 2(1 + 4x).

Back

x = -3.

Front

What does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x.

Front

Define y-intercept.

Back

The y-intercept is the point where the line crosses the y-axis.

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 slope from two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the formula for the slope-intercept form of a line?

Back

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

Front

What does it mean if a line has a slope of 0?

Back

A slope of 0 means the line is horizontal.