Square Root Functions

Question 1

Which could be the function graphed below?

Revolt · Accepted Answer

f (x) = StartRoot x EndRoot minus 2

Question 2

Which equation can be simplified to find the inverse of y = x2 – 7?

Revolt · Accepted Answer

x = y2 – 7

Question 3

What is the domain of the square root function graphed below?

Revolt · Accepted Answer

x greater-than-or-equal-to 0

Question 4

What is the domain of the square root function graphed below?

Revolt · Accepted Answer

x greater-than-or-equal-to 3

Question 5

If , which inequality can be used to find the domain of f(x)?

Revolt · Accepted Answer

x minus 3 greater-than-or-equal-to 0

Question 6

Which equation is the inverse of y = 100 – x2?

Revolt · Accepted Answer

y = plus-or-minus StartRoot 100 minus x EndRoot

Question 7

Which equation is the inverse of y = 16x2 + 1?

Revolt · Accepted Answer

y = StartFraction plus-or-minus StartRoot x minus 1 EndRoot Over 4 EndFraction

Question 8

Which equation can be simplified to find the inverse of y = 2x2?

Revolt · Accepted Answer

x = 2y2

Question 9

Which equation is the inverse of 2(x – 2)2 = 8(7 + y)?

Revolt · Accepted Answer

y = 2 plus-or-minus StartRoot 28 + 4 x EndRoot

Question 10

Which equation is the inverse of ?

Revolt · Accepted Answer

y = negative 3 plus-or-minus StartRoot 5 x + seven-halves EndRoot

Square Root Functions Answers