Point-Slope Form of a Line

Question 1

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

Revolt · Accepted Answer

y + 2 = –(x – 3)

Question 2

f(x) = (1/3)x – (5/3)✔ f(x) = (1/3)x – (1/3)f(x) = 3x – 3f(x) = 3x + 1

Revolt · Accepted Answer

✔ f(x) = (1/3)x – (1/3)

Question 3

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

Revolt · Accepted Answer

✔ m = 1/2; The slope of the line is .: m = 1/2; A point on the line is .: (1, 4)

Question 4

(–4, –1)(4, 1/2)(1/2, –1)✔ (1, 4)

Revolt · Accepted Answer

✔ (1, 4)

Question 5

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.

Revolt · Accepted Answer

f(x) = 0.25x+ 500; 500

Question 6

0.25✔ 5003,00010,000

Revolt · Accepted Answer

✔ 500

Question 7

✔ (–2, 0)(0, 4)(2, 0)(4, 0)

Revolt · Accepted Answer

✔ (–2, 0)

Question 8

510✔ 1530

Revolt · Accepted Answer

✔ 15

Point-Slope Form of a Line Answers

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