A | math4u.vsb.cz

9000007804

Level:

Three of the points

A = [2; - 4]

B = [0; - 3]

C = [- 2; - 1]

D = [- 4; 1]

lie on the graph of the same linear function. Identify these points. (Colinear points.)

B

C

D

A

B

C

A

B

D

A

C

D

9000008001

Level:

Consider the function

f (x) = - \frac{4}{x}

and the points

A = [1; - 4]

B = [- 2; 2]

C = [4; 1]

D = [2; 2]

. How many of these points are on the graph of the function

f

2

1

3

4

9000007206

Level:

Consider the linear system:

\begin{aligned} 2 x - 3 y - 12 & = 0, \\ ??? & = 0. \end{aligned}

In the following list, identify the missing second equation if you know that the system does not have a solution.

- 6 x + 9 y - 9 = 0

2 x + 3 y - 6 = 0

- 4 x + 6 y + 24 = 0

x + 2 y - 12 = 0

9000008010

Level:

Given the function

f : y = - \frac{3}{x}

. find the function

g

such that the graphs of

f

and

g

are symmetric about the

x

-axis.

g (x) = \frac{3}{x}

g (x) = - \frac{3}{x}

g (x) = - \frac{1}{x}

g (x) = \frac{2}{x}

9000008005

Level:

Given the function

f (x) = - \frac{10}{x}

, evaluate

f (- 5) \cdot f (2)

- 10

2.5

1

2.5

9000008009

Level:

Given the function

f (x) = \frac{5}{x}

, find the function

g

such that the graphs of

f

and

g

are symmetric about the line

y = x

g (x) = \frac{5}{x}

g (x) = \frac{1}{x}

g (x) = - \frac{2}{x}

g (x) = - \frac{5}{x}

9000008002

Level:

Consider the point

A = [- 1; - 3]

and the function

f (x) = \frac{k}{x}

with a nonzero real parameter

k \in R ∖ {0}

. Identify the value of the parameter

k

which ensures that the point

A

is on the graph of

f

3

1

- 1

- 3

9000008003

Level:

Given the function

f (x) = \frac{6}{x}

, solve the following equation.

f (x) = 2

3

2

- 2

- 3

9000008004

Level:

Given the function

f (x) = - \frac{8}{x}

, evaluate

f (- 4)

2

- 4

4

32

9000008006

Level:

Given the functions

f (x) = \frac{2}{x}

and

g (x) = \frac{4}{x}

, identify a true statement.

f (2) = g (4)

f (\frac{1}{2}) = g (2)

f (1) > g (2)

f (4) < g (10)

A

9000007804

9000008001

9000007206

9000008010

9000008005

9000008009

9000008002

9000008003

9000008004

9000008006

Events

Akce

Interests

Zajímavosti

About portal

O portálu