Linear Equations in One Variable

SAT Math· difficulty 4/5

The function h(t)=5+0.4th(t) = 5 + 0.4t models the height of a plant in cm at week tt. What does 0.4 represent?

  • A

    Total weeks

  • B

    Final height

  • C

    Growth rate per week (cm/week)

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  • D

    Initial height

Explanation

Slope 0.4 represents weekly growth rate.

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