Writing Linear Equations — Unit test

Question 1

Mr. Shaw graphs the function f(x) = –5x + 2 for his class. The line contains the point (-2, 12). What is the point-slope form of the equation of the line he graphed?

Revolt · Accepted Answer

y – 12 = –5(x + 2)

Question 2

Which linear function represents the line given by the point-slope equation y + 7 = –(x + 6)?

Revolt · Accepted Answer

f(x) = –x – 11

Question 3

At a glance, Kendra believes that the function represented on the graph is linear.

Revolt · Accepted Answer

She can check to see if the rate of change between the first two ordered pairs is the same as the rate of change between the first and last ordered pairs.

Question 4

Which linear function represents the line given by the point-slope equation y – 8 = (x – 4)?

Revolt · Accepted Answer

f(x) = x + 6

Question 5

The table represents a linear equation.

Revolt · Accepted Answer

y + 6 = (x + 2)

Question 6

A coordinate plane with a line passing through (negative 4, 3), (0, 1), and (4, negative 1).

Revolt · Accepted Answer

f(x) = –x + 1

Question 7

Tracie rides the bus home from school each day. The graph represents her distance from home relative to the number of minutes since the bus left the school.

Revolt · Accepted Answer

Tracie’s bus travels towards her home at an average speed of mile per minute.

Question 8

To graph the equation 2x + 5y = 10, Zeplyn draws a line through the points (5, 0) and (0, 2). What is the slope of the line represented by 2x + 5y = 10?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/evresources/3f1db7adc3f2c2532e0c3284a91fd637.png

Question 9

A line that passes through the points (–4, 10) and (–1, 5) can be represented by the equation y = (x – 2). Which equations also represent this line? Select three options.

Question 10

The table represents a linear function.

Revolt · Accepted Answer

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Writing Linear Equations — Unit test Answers

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