1.Среди данных уравнений выберите квадратное
5x² - 3x³=0
x+3x-5=0
2x²+4x+15=0
4x-6x²+8=0
x³+2x-9=0
2. Укажите старший коэффициент, второй коэффициент и свободный член квадратного уравнения -4х²+3x-5=0.
а=4; b=3; c=5;
а=3; b=-5; c=-4;
а=-4; b=3; c=5;
а=-4; b=3; c=-5.
3. Старший коэффициент квадратного уравнения равен 1, второй коэффициент равен 4, а свободный член равен -8. Тогда данное квадратное уравнение имеет вид:
-1x²+4х - 8 = 0
x²+4x - 8 = 0
x² - 8х +4 = 0
4x² - 8х + 1 = 0
4. Представьте уравнение 6x(3 - x) = 7 - 2x² в виде ax² + bx + c = 0 и укажите значение коэффициентов a, b, c.
-4x² + 18x - 7 = 0, a = -4, b = 18, c = -7.
4x² - 18x + 7 = 0, a = 4, b = -18, c = 7.
18х - 6x² - 7 + 2x² = 0 , a = 2, b = 18, c = -7.
-4x² - 18x + 7 = 0, a = -4, b = -18, c = 7.
5. Какие из данных квадратных уравнений является приведенными?
-4x² + 18x - 7 = 0
2x² + 6x - 8 = 0
x² + 4x - 7 = 0
6x² + 18x - 2 = 0
x² + x + 6 = 0
5х - x² + 18 = 0
6. Какие из заданных пар чисел являются корнями квадратного уравнения x² + 9x - 10 = 0:
1 и 0;
-2 и -3;
-10 и 1;
0 и -10
7. Приведенное квадратное уравнение - это квадратное уравнение, в котором
коэффициент a = 0;
коэффициент b = 0;
коэффициент c = 0;
коэффициент b = 0 или c = 0.
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are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
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are my parents. My Mom’s name is Ann and my father’s name is Tom
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are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
are my grandparents. They are riding bikes.
is our house. I can see it from here.
are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
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is our house. I can see it from here.
are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
are my grandparents. They are riding bikes.
is our house. I can see it from here.
are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
are my grandparents. They are riding bikes.
is our house. I can see it from here.
are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
are my grandparents. They are riding bikes.
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are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
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are my parents. My Mom’s name is Ann and my father’s name is Tom
is my mother. She has baked a delicious strawberry pie.
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are my parents. My Mom’s name is Ann and my father’s name is Tom
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Найдем точку при x=−2
Заменим в выражении переменную x на −2
f(−2)=2(−2)−(−2)^3
Упростим результат.
f(−2)=−4−(−2)^3
Возведем −2 в степень 3
f(−2)=−4+8
f(−2)=−4+8
f(−2)=4
Итоговым ответом является 4
y=4
Найдем точку при x=−1
Заменим в выражении переменную x на −1
f(−1)=2(−1)−(−1)^3
Упростим результат.
f(−1)=−2+1
f(−1)=−1
Итоговым ответом является −1
y=−1
Найдем точку при x=0
Заменим в выражении переменную x на 0
f(0)=2(0)−(0)^3
f(0)=0−0^3
f(0)=0
Итоговым ответом является 0
y=0
Найдем точку при x=1
f(1)=2(1)−(1)^3
Упростим результат.
f(1)=2-1*1
f(1)=1
Итоговым ответом является 1
y=1
Найдем точку при x= 2
f(2)=2(2)−(2)^3
Упростим результат.
f(2)=−4−(2)^3
Возведем 3 в степень 3
f(2)=4-8
f(2)=-4
Итоговым ответом является -4
y=-4
График кубической функции можно построить, учитывая поведение функции и используя данные точки.
x y
-2 4
-1 -1
0 0
1 1
2 -4
График кубической функции можно построить, учитывая поведение функции и используя выбранные точки. Возрастает влево и убывает вправо
x y
-2 4
-1 -1
0 0
1 1
2 -4