Question

Mark recorded the growth of a plant over 8 weeks. The equation y=0.2x+2 represents the height y, in inches, after x weeks.

Answer 1

The statements could be true are:

The height of the plant after week 3 was about 2.6 inches. ⇒ A

The height of the plant after week 9 was about 3.8 inches. ⇒ C

Step-by-step explanation:

Mark recorded the growth of a plant over 8 weeks

The equation y = 0.2x + 2, represents the height y, in inches, after x weeks

From the equation

• 0.2 represents the rate of increasing of the height of the plant per week
• 2 represents the initial height of the plant

∵ y represents the height of the plant after x week

∴ x is the number of the weeks

∵ y = 0.2x + 2

∵ x = 3

- Substitute x in the equation by 3

∴ y = 0.2(3) + 2

∴ y = 0.6 + 2

∴ y = 2.6

∴ The height of the plant after 3 weeks is 2.6 inches

∵ x = 9

- substitute x by 9 in the equation

∴ y = 0.2(9) + 2

∴ y = 1.8 + 2

∴ y = 3.8

∴ The height of the plant after 9 weeks is 3.8 inches

The statements could be true are:

The height of the plant after week 3 was about 2.6 inches.

The height of the plant after week 9 was about 3.8 inches.

Learn more:

You can learn more about the linear equations in brainly.com/question/1284310

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