Analyzing Graphs of Linear Functions

What is the y-intercept?

• (5, 0)

• (-5, 0)

• (0, 5)

• (0, -5)

Linear Functions are functions whose graph is a _______ _____.

• U-shaped curve

• V-shaped curve

• straight line

• wavy line

What does the m stand for?

• y-intercept

• x-intercept

• solution

• slope

If the x-intercept is (-7,0), then what is the "zero" of the function?

• x = -7

• x = 0

• Both of these

• None of these

• a
• b
• c
• d

(a)  

• F

• G

• H

• J

Akiko is painting a room in her house. The graph shows the area Akiko has painted as a function of time. Which description is correct?

• For the first 2 hours, Akiko paints very quickly at first, but then slows down

• For 2 < x < 3, Akiko paints at a constant rate

• For 3 < x < 4, Akiko continues painting at a varying rate

• For the last 2 hours, Akiko paints at a constant rate, but much more slowly than earlier in the day

This graph shows the temperature in Diego’s house between noon and midnight one day. Select all the TRUE statements.

• Time is a function of temperature.

• The lowest temperature occurred between 4:00 and 5:00.

• The temperature was increasing between 9:00 and 10:00.

• The temperature was 74 degrees twice during the 12-hour period.

• There was a four-hour period during which the temperature did not change.

Graph the linear function y=3x-2