Practice functions and radicals with square and cube roots

If the number one (1) is the first perfect square number, what is the 7th perfect square number?

(a)  

Tags

CCSS.8.EE.A.2

Which of these numbers is NOT a perfect square?

• 4

• 2

• 44

• 88

• 64

Tags

CCSS.8.EE.A.2

If a sequence begins with x = 1, then x = 2, and so on... and the corresponding y-values are -2, -5, -8, -11,... is this an exponential, quadratic, or linear function?

• linear

• quadratic

• exponential

If a sequence begins with x = 1, then x = 2, and so on... and the associated y-values are -2, -5, -8, -11,... what is the constant difference or common ratio

• common ratio = -3

• common ratio = 3

• constant difference = -3

• constant difference = 3

Tags

CCSS.HSF.BF.A.2

Do these points appear to represent a linear, an exponential, or a quadratic function? [(0, -3), (1, 0), (2, 9), (-2, 9), (-1, 0)]

• linear

• exponential

• quadratic

Do these points appear to represent a linear, an exponential, or a quadratic function? [(-1, 0.2), (0, 1), (1, 5), (2, 25), (3, 125)]

• linear

• exponential

• quadratic

What function represents the following data: (-3, 4), (-2, 2), (-1, 0), (0, -2), (1, -4)

• y = x² - 2

• y = (1/2)^x

• y = x² + 2

• y = -2x - 2

• y = 2x - 2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of these could NOT be a correct first step in simplifying  $\sqrt{180}$  ?

•  $\sqrt{15\cdot12}$  

•  $\sqrt{3\cdot60}$  

•  $\sqrt{10\cdot19}$  

•  $\sqrt{5\cdot36}$  

Simplify  $\sqrt{72}$  [use numbers and for square root use the letters (sqrt) or for cube root (cuberoot) -- for example, write  $5\sqrt{2}$  as  5 sqrt 2   or   write   $2\ \left(5\right)^{\frac{1}{3}}$  as  2 cuberoot 5]

(a)  

What is the conjugate of  $\sqrt{2}\ +\ \sqrt{7}$  ?

•  $\sqrt{2}\ +\ \sqrt{7}$  

•  $\sqrt{2}-\sqrt{7}$  

•  $-\sqrt{2}+\sqrt{7}$  

•  $-\sqrt{2}-\sqrt{7}$