Funkcje

Funkcje

10th Grade

11 Qs

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Funkcje

Funkcje

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

Iza Skóra

Used 13+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

Funkcję y=x2 przesunięto o 2 jednostki w prawo, a następnie o 4 jednostki do góry. Wzór funkcji po przesunięciu ma postać:

y=(x+2)2+4

y=(x-2)2-4

y=(x-2)2+4

y=(x+2)2-4

Answer explanation

The correct choice is y=(x-2)^2+4, as the function was shifted 2 units to the right and 4 units up.

2.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

9

-9

21

Answer explanation

The zero of the function is found by setting f(x) = 0 and solving for x. Therefore, 21 - (7/3)x = 0, x = 9 is the correct zero.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Co to jest dziedzina funkcji?

Zbiór wszystkich możliwych argumentów, dla których funkcja ma określoną wartość.

Miejsce zerowe funkcji

Zbiór wartości

Suma wartości funkcji

Answer explanation

The domain of a function is the set of all possible input values (arguments) for which the function produces a defined output value.

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Co to jest miejsce zerowe funkcji?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Funkcja f(x)=23-2x jest

rosnąca

malejąca

stała

Answer explanation

The function f(x)=23-2x is decreasing because as x increases, the value of -2x increases, leading to a decrease in the overall function value.

6.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Funkcja f(x)=(6-2m)x+5 jest rosnąca, gdy:

m ϵ (-∞;3)

m ϵ (-∞;-3)

m ϵ (3;∞)

m ϵ (-3;∞)

Answer explanation

The function f(x)=(6-2m)x+5 is increasing when the coefficient of x, 6-2m, is positive. This occurs when m ϵ (-∞;3).

7.

MULTIPLE CHOICE QUESTION

45 sec • 2 pts

Proste o równaniach y=2mx-m2-1 oraz y=4m2x+m2+1 są prostopadłe dla

m=1

m=2

Answer explanation

The correct choice is m=-1/2 because the slopes of perpendicular lines are negative reciprocals of each other.

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