Find the error in the problem below 19 - 2k = 3k - 1 +3k +3k 19 + 1k = -1 -19 -19 k = -20

Instead of adding 3k they should subtract 3k

They should have divided by 1 for the last step

They should add 19 instead of subtracting 19

What is the definition of infinite solutions?

no matter what constant is substituted in for the variable, the equation is ALWAYS true

no matter what constant is substituted in for the variable, the equation will NEVER be true

only this ONE solution will make the equation true

If a system of equations has infinitely many solutions, what does the graph look like?

the same line (coinciding lines)

Is the relation a function? Why.

No, because the x-value 11 has two y-values pair with it.

Yes, because the x-value 11 has two y-values pair with it.

Yes, because each x-value has only one y-value paired with it.

No, because each x-value has only one y-value paired with it.

Is this a function? Explain.

Yes; it passes the vertical line test.

Yes; it passes the horizontal line test.

No; there is a line connecting the dots.

What is the definition of function?

Every input has only ONE output

Inputs have different outputs every time

TCAP review - most missed questions

Quiz

•

Mathematics

•

8th Grade

•

Practice Problem

•

Hard

•

CCSS

8.G.A.3, 8.EE.B.5, 8.G.A.5

+54

Standards-aligned

Rachel Pugh

FREE Resource

240 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

3 x 10¹⁰

3 x 10⁴

3 x 10^-4

3 x 10^-11

Tags

CCSS.8.EE.A.4

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the simplified version of

3.9 x 10⁶

4 x 10²⁰

4 x 10⁶

3.9 x 10²⁰

Tags

CCSS.8.EE.A.4

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

a⁸b¹³

a²b⁷

a¹⁵b³⁰

Tags

CCSS.8.EE.A.1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Simplify:
(7y⁴)²

7y⁶

14y⁸

14y⁶

49y⁸

Tags

CCSS.8.EE.A.1

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify the exponential expression:

10x^-2

2x²

2x¹²

10x¹²

Tags

CCSS.HSA.APR.A.1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4.85768576...

rational

irrational

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find the slope:
(-3, 3) and (7, 6)

3/4

-4/3

3/10

-10/3

Tags

CCSS.8.EE.B.5

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