Slope-Intercept Form of a Line

Question 1

Use the point-slope equation to identify the slope and the coordinates of a point on the line y – 4 = (x – 1). The slope of the line is . A point on the line is .

Revolt · Accepted Answer

m = 1/2; Selection 1: m = 1/2; Selection 2: (1, 4)

Question 2

Question 2

Revolt · Accepted Answer

(1, 4)

Question 3

Which point-slope equation represents a line that passes through (3, –2) with a slope of ?

Revolt · Accepted Answer

y + 2 = –(x – 3)

Question 4

What is the equation of the line in point-slope form?

Revolt · Accepted Answer

y + 4 = (x + 4)

Question 5

Which graph represents the function y – 3 = (x – 4)?

Revolt · Accepted Answer

[Image: A coordinate grid with a line passing through the ...]

Question 6

Choose a linear function for the line represented by the point-slope equation y – 5 = 3(x – 2).

Revolt · Accepted Answer

f(x) = 3x – 1

Question 7

Question 7

Revolt · Accepted Answer

y + 1 = (1/3)(x + 2)

Question 8

Analyze each step to identify if Andy made an error.

Revolt · Accepted Answer

Yes, he made an error in Step 1. He switched the x and y values.

Question 9

A tile factory earns money by charging a flat fee for delivery and a sales price of $0.25 per tile. One customer paid a total of $3,000 for 10,000 tiles. The equation y – 3,000 = 0.25(x – 10,000) models the revenue of the tile factory, where x is the number of tiles and y is the total cost to the customer. Which function describes the revenue of the tile factory in terms of tiles sold? What is the flat fee for delivery? $

Revolt · Accepted Answer

f(x) = 0.25x+ 500; Selection 1: f(x) = 0.25x+ 500; Selection 2: 500

Question 10

Question 10

Revolt · Accepted Answer

f(x) = (1/3)x – (1/3)

Slope-Intercept Form of a Line Answers

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