Question 1

Your father is driving a car in going to work&#44; which is 54 km away from
your house. Express the speed of your father’s car as a function C(n) if it
takes n minutes of travel from your house to his office.

Accepted Answer

C(n) = 54/n

Answer

C(n) =  n/54

Answer

C(n ) = 54-n

Answer

C(n) = 54n

Question 2

Is the function f(x)=
1/(x^√2) a rational function?

Accepted Answer

False

Answer

Cornball

Answer

True

Answer

Sometimes

Question 3

If a man can jog around the 400-meter oval in m minutes&#44; the speed of
the jogger can be expressed as a rational function f(m)=____________.

Accepted Answer

400/m

Answer

400m^2

Answer

m/400

Answer

400m

Question 4

Which of the following is not a rational function?

Accepted Answer

f(x) = √(3x +2)/2x

Answer

f(x) = (x - 2)/(x +5)

Answer

f(x) = (3x +8)/(x^2 +2x +5)

Answer

f(x) = 2x/(x - 5)

Question 5

Use a rational function to express your speed in walking (n minutes)
while going to school&#44; which is 400 meters away from your house.

Accepted Answer

f(n) = 400/n

Answer

f(n) = 400 – n

Answer

f(n) = n/400

Answer

f(n) = √(400-n)

Question 6

This is a&#58;

Accepted Answer

Rational Function

Answer

Rational Equality

Answer

Rational Expression

Answer

Rational Inequality

Question 7

This is a&#58;

Accepted Answer

Rational Equation

Answer

Rational Function

Answer

Rational Inequality

Answer

Rational Expression

Question 8

This is a&#58;

Accepted Answer

Rational Inequality

Answer

Rational Expression

Answer

Rational Function

Answer

Rational Equation

Question 9

What form is this?

Accepted Answer

Rational Function

Answer

Rational Equation

Answer

Rational Expression

Answer

Rational Inequality

Question 10

Which of the following shows rational function?

Accepted Answer

y = 2x/(x^2 -9)

Answer

(x+1)/2x = 5

Answer

2x ≥ x –1

Answer

2x + 3 < 10

Question 11

Find the solution of the rational inequality:

Accepted Answer

-3 ≤ x < 9

Answer

(-3,9]

Answer

-9 ≤ x < 3

Answer

(-3,9)

Question 12

Solve the inequality:

Accepted Answer

( -∞, -5) Ս (-4,4 )

Answer

(-∞, -5) Ս (4, ∞)

Answer

( -∞, -5) Ս (-4, ∞)

Answer

(5, ∞) Ս (-4,4 )

Question 13

Determine where the numerator and denominator are zeroes for the rational inequality:

Accepted Answer

-1 and 5

Answer

1 and -5

Answer

-1 and -5

Answer

1 and 5

Question 14

Find the solution of the rational inequality:

Accepted Answer

(−∞,0)∪(7,∞)

Answer

(−∞,-7)∪(7,∞)

Answer

(−∞,-7)∪(0,∞)

Answer

(−∞,0)∪(-7,∞)

Question 15

Solve the rational inequality and write the solution set in interval notation:

Accepted Answer

(−∞,−0.1)∪(0,∞)

Answer

(−∞,0)∪(10,∞)

Answer

(−∞,)∪(0.1,∞)

Answer

(−∞,−10)∪(0,∞)

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