HW 8/26- Key Attributes of Function

The height of a plant was measured each day during a two-week period. The graph models the linear relationship between the height of the plant, in inches, and the number of days the plant height was measured.

• The plant took 12 days to grow.

• The plant has an initial height of 15 inches.

• The plant height was measured for 14 days.

• The plant will stop growing after 12 days.

April graphed a function with only one negative zero. Which graph best represents the function April graphed?

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Damien graphed the following linear function on an (x, y) coordinate plane.

f(x) = 6x + 12.6

What is the x-intercept of the graph of this function?

• A. -6.6

• B. -2.1

• C. 6

• D. 12.6

A tourist decides to go cliff jumping in Hawaii from a cliff that is 5 yards from the water. The parabola below shows the path of the jumper. How long did it take the tourist to make it to the water?

Mathematical Equivalence

ON

Mrs. Bradford gave her students a list of functions. Which functions have the same y-intercept? Select TWO correct answers.

• (0.354, 0)
• (3, -3.5)
• (0, 1)
• (5.646, 0)
• (1, 0)
• (0, 0.354)
• (0, 5.646)
• (-3.5, 3)

Carlos graphed a linear function on a coordinate plane. His little sister graphed a function with a greater zero. Which equation represents the function Carlos’ sister graphed?

• y = x² + 12x + 36

• y = 3x + 2

• y = ½x + 5

• y = 4x² + 8x + 4

Harriet graphed a function that has an x-intercept of -2 and a y-intercept of 5. Which graph represents the function Harriet graphed?

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Mr. Hill gave his students a function on a graph. Which of the following functions would have a greater x-intercept?

• y = 2x - 7

• y = x² - 10x + 25

• y = -3x + 4

• y = 2x² - 3x + 6

What are the coordinates of the x and y-intercepts of the following function?

x-intercept: ​ (a)   and ​ (b)  

y-intercept: ​ (c)  

• (-1, 0)
• (3, 0)
• (0, -3)
• (0, -1)
• (0, 3)
• (-3, 0)