Quiz for:
Understanding Lines and Their Equations 1.4

Question 1

What must be true about the slopes of perpendicular lines?

Question 2

What is the formula for the slope of a line?

Question 3

Given the line 2x + 3y - 5 = 0, what is its slope when converted to slope-intercept form?

Question 4

What equation describes a horizontal line passing through the y-coordinate 2?

Question 5

Find the equation of a line through (-3, 1) perpendicular to 2x + 4y + 7 = 0.

Question 6

What is the slope of a vertical line?

Question 7

Calculate the average rate of change for the function f(x) = x^2 - 1 from x = -2 to x = 0.

Question 8

Given the point (4, 2) and slope -3/7, what is the point-slope form of the line?

Question 9

How do you find the equation of a line parallel to 3y = -2x + 5 through (-1, 2)?

Question 10

What inherent advantage does the point-slope form offer?

Question 11

Calculate the slope of a line through the points (4, 2) and (-3, 5).

Question 12

What does the slope-intercept form of a line look like?

Question 13

To determine parallel lines, what condition must their slopes satisfy?

Question 14

What is the formula for calculating the average rate of change for a function?

Question 15

Which form is more efficient for graphing purposes, point-slope or slope-intercept?