Test - OK Mastering the OSTP in Grade 8 math Pre Test

OK Mastering the OSTP in Grade 8 math Pre Test Sample

1 pt

Which number, $3.04 \times 10^{7}$ or $6.78 \times 10^{5}$ , is the larger number and why?

$6.78 \times 10^{5}$ is the larger number because 6.78 is larger than 3.04.

$6.78 \times 10^{5}$ is the larger number because $10^{5}$ is greater than $10^{7}$ .

$3.04 \times 10^{7}$ is the larger number because 3.04 is greater than 6.78.

$3.04 \times 10^{7}$ is larger because $10^{7}$ is greater than $10^{5}$ .

1 pt

Based upon the scatter plot below, what would you predict the line of best fit to be, in terms of the y-intercept? In other words, what % of muscle tone would you expect for someone who never works out?

1 pt

Use the function $Y = \frac{1}{5} X + 2$ . What would the rate of change be if the y-intercept was changed from 2 to –2?

$\frac{1}{5}$

–4

$\frac{- 1}{5}$

1 pt

Use the data given below. Of the students who are female, what percentage of them are under 5’5’’?

34%

68%

80%

90%

1 pt

What should the missing number in the table be to form a linear function?

1 pt

15.

Simplify the following expression:

$\frac{{(2^{4})}^{3}}{(2^{5}) (2^{- 4})}$

2048

$\frac{1}{256}$

$\frac{1}{2048}$

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