Question 1

Which of the following is a one-to-one function?

Accepted Answer

{(1, 2), (2, 4), (3, 6), (4, 8)}

Answer

{(-1, 3), (-1, 5), (-1, 7), (-1, 9)}

Answer

{(2,2), (3, 4), (4,4), (2, 3)}

Answer

{(-2, 2), (-1, 1), (0,0), (1, -1)}

Question 2

Which of the following is not a one-to-one function?

Accepted Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/5f64e5e99e9eef6a0331723de342e930d567434d.jpg

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/ab14ac4521892cba1480d64eab22ddac84d3bb6c.jpg

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/3bdb280e55b209b2fe9716f06d1d503eecd91c92.png

Answer

https://uploads.quizalize.com/00355fde-4666-4abd-89f1-3f20004dbdfb/question/bbcca7b5a23a1af5f833641853df51ef5fce6608.png

Question 3

What is the inverse of f(x) = $x - 9$ ?

Accepted Answer

$y = x + 9$

Answer

$y = -x + 9$

Answer

$y = x - 9$

Answer

$y = 9 - x$

Question 4

What is the inverse of f(x) = $2x + 7$ ?

Accepted Answer

$y$ = $ \frac {x-7}{2}$

Answer

$y$ = $ \frac {2x}{7}$

Answer

$y = 2x - 14$

Answer

$y$ = $ \frac {x+7}{2}$

Question 5

What is the inverse of f(x) = $x^2 - 16$ ?

Accepted Answer

y = $\sqrt{x +16}$

Answer

y = $\sqrt{x -16}$

Answer

y = ${(x -16)}^2$

Answer

y = ${(x +16)}^2$

Question 6

What is the inverse of $f(x) = x^2 + 10$?

Accepted Answer

$y = \sqrt{x -10}$

Answer

y = $\sqrt{x +10}$

Answer

$y = x^2 + 10$

Answer

$y = x^2 - 10$

Question 7

What is the inverse of $ f(x) = \frac {x-5}{ 3}$?

Accepted Answer

$y = 3x + 5$

Answer

$y = 3x -5$

Answer

$y = 3x - 5$

Answer

$y= \frac {x+5}{ 3}$

Question 8

If the inverse of a function is  $y = x + 100$, which among the following is the original function?

Accepted Answer

$f(x) = x - 100$

Answer

$f(x) = \frac{x}{100}$

Answer

$f(x) = \frac{100}{x}$

Answer

$f(x) = x + 100$

Question 9

The relationship between the student's grade to each subject is a one-to-one function.

Accepted Answer

false

Answer

true

Question 10

This is used to determine if the graph is a one-to-one function.

Accepted Answer

Horizontal Line Test

Answer

Vertical Line Test

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