The function $$h\left(t\right)=27+8t-16t^2$$ models the height h , in feet, of a rock t seconds after it is tossed from a dock. What does the x-coordinate of the vertex represent?

the time it takes for the rock to reach its maximum height

the time it take for the rock to hit the ground

The function $$h\left(t\right)=27+8t-16t^2$$ models the height h , in feet, of a rock t seconds after it is tossed from a dock. What does the y-coordinate of the vertex represent?

the time it takes for the rock to hit the ground

the time it takes for the rock to reach its maximum height

Is the model a good fit for the data? Explain.

No; the residuals on the graph show a pattern.

No; the data are too far from the line of fit.

No; the data are too close the line of fit.

No; the residuals on the graph do not show a pattern.

EOC Practice Test B

Authored by JEANETTE GONZALEZ

Mathematics

9th - 12th Grade

CCSS covered

Used 13+ times

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EOC Practice Test B

The amount of money in a savings account increases by 0.15% every month. Write a function for the amount of money in the account, B, after t months with an initial deposit of $50.

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