Writing Linear Equations

Question 1

Write the equation of the line that passes through the points (7, –4) and (–1, 3), first in point-slope form, and then in slope-intercept form.

Revolt · Accepted Answer

✔ –7/8; The slope of the line is .: –7/8; When the point (7, –4) is used, the point-slope form of the line is .: y+ 4 = (–7/8)(x – 7); The slope-intercept form of the line is .: y = (–7/8)x + (17/8)

Question 2

y – 7 = (–4/3)(x + 4)y + 7 = (–3/4)(x – 4)y – 4 = (–8/7)(x + 7)✔ y+ 4 = (–7/8)(x – 7)

Revolt · Accepted Answer

✔ y+ 4 = (–7/8)(x – 7)

Question 3

y = (–4/3)x + (5/3)✔ y = (–7/8)x + (17/8)y = (–8/7)x – 4y = (–3/4)x – 4

Revolt · Accepted Answer

✔ y = (–7/8)x + (17/8)

Question 4

The slope of the line is .

Revolt · Accepted Answer

–7/8

Question 5

Which equations represent a line that passes through the points given in the table? Check all that apply.

Revolt · Accepted Answer

y – 2 = –(x + 10); y – 1 = –(x + 4); y = –x +

Question 6

When the point (7, –4) is used, the point-slope form of the line is .

Revolt · Accepted Answer

y+ 4 = (–7/8)(x – 7)

Question 7

The slope-intercept form of the line is .

Revolt · Accepted Answer

y = (–7/8)x + (17/8)

Writing Linear Equations Answers

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