P F Test 3 -- Linear Equations

Front

What is the equation of a line perpendicular to y = 2 that passes through the point (-10, 5)?

Back

x = -10

Front

How do you write the equation of a line that passes through a point (-2, -5) with a slope of 3?

Back

y + 5 = 3(x + 2)

Front

What is the slope of the line represented by the equation y = 1/2?

Back

0

Front

How do you solve the equation 1/3 x = 12 for x?

Back

x = 36

Front

What is the slope of the line represented by the equation x = 7?

Back

undefined

Front

What is the general form of the equation of a line?

Back

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

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

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

What is the significance of an undefined slope in a linear equation?

Back

An undefined slope indicates a vertical line.