(MCA) Test 3

Front

What is slope-intercept form?

Back

Slope-intercept form is a way of writing the equation of a line in the form 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 = 10x - 7.

Back

Slope (m) = 10, y-intercept (b) = -7.

Front

How do you solve for y in the equation 8x + 2y = -10?

Back

Rearranging gives y = -4x - 5.

Front

What is the equation of a line with slope m = 1/4 and y-intercept b = 3?

Back

The equation is y = \frac{1}{4}x + 3.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, indicating the value of y when x = 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

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

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What is the slope between the points (-4, 3) and (-4, -7)?

Back

The slope is undefined because the x-coordinates are the same.

Front

What is the general form of a linear equation?

Back

The general form is Ax + By + C = 0, where A, B, and C are constants.