Funkcje
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Iza Skóra
Used 12+ 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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