P F Test 3 -- Linear Equations

Front

What is the slope of a line perpendicular to a line with a slope of 2?

Back

The slope of a line perpendicular to a line with a slope of 2 is -1/2.

Tags

CCSS.8.EE.B.6

Front

How do you find the x-intercept of the equation 3x - 2y = 12?

Back

To find the x-intercept, set y = 0 and solve for x. The x-intercept is (4, 0).

Front

How do you find the y-intercept of the equation 3x - 2y = 12?

Back

To find the y-intercept, set x = 0 and solve for y. The y-intercept is (0, -6).

Front

What is the general form of the equation of a line parallel to y = -4x + 3?

Back

The general form of the equation of a line parallel to y = -4x + 3 is y = -4x + b, where b is the y-intercept.

Front

What is the equation of a line parallel to y = 7 that passes through the point (3, -1)?

Back

The equation of the line is y = -1.

Front

How do you determine the equation of a line given a point and a slope?

Back

Use the point-slope form: y - y1 = m(x - x1), where (x1, y1) is the point and m is the slope.

Front

What is the slope of the line represented by the equation y = (1/2)x + 9?

Back

The slope of the line is 1/2.

Tags

CCSS.8.EE.B.5

Front

How do you find the equation of a line that is parallel to a given line and passes through a specific point?

Back

Use the slope of the given line and the point-slope form to find the equation.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Tags

CCSS.8.EE.B.5