8th Grade Math Released EOG Questions

What is the equation of the line graphed below?

• y = 2/3 x - 2

• y = 2/3 x + 3

• y = 3/2 x - 2

• y = 3/2 x + 3

Which graph has a slope that is 1/4 unit greater than the slope of the graph of y = x - 2?

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Susan recorded the time she ate dinner and the number of calories she consumed during dinner for six consecutive days. The results are shown in the table.

• positive

• negative

• irrational

• almost none

Which choice is an irrational number?

• 4π/π

• √6²

• √18

• 21.989

In which choice is y a nonlinear function of x?

• y = x/4 + 5

• y = 10 + x

• y = x/4 - 2x

• y = 2/(x + 3) - 5

Mr. Jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. What is the meaning of the y-intercept of the function?

• A student who was not absent during the unit should score about 98.

• A student who was not absent during the unit should score about 94.5.

• A student’s test score should increase by about 3.2 points for each day the student is absent.

• A student’s test score should decrease by about 3.2 points for each day the student is absent.

Which is the graph of the linear equation y = -x?

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In which choice is y a nonlinear function of x?

• A

• B

• C

• D

Which choice is both the square of an integer and the cube of an integer?

• A: 121

• B: 100

• C: 64

• D: 16

In which choice do all three points lie on the same straight line?

• A: (0, 1), (-1, 3), (1, 3)

• B: (4, 2), (2, 1), (4, -2)

• C: (0, 0), (8, 0), (0, 8)

• D: (1, 2), (2, 4), (4, 8)