Question

Дана функция y=−3−a. При каких значениях a значение функции равно −9? a= .

Answer 1

Ответ: a = 6

Потому что, если мы подставим полученные числа, то получим -9:

y = -3 - (+6)

y = -9

Answer 2

To find the value of "a" when the function y = -3 - a is equal to -9, we can substitute -9 for y in the equation and solve for "a."

-9 = -3 - a

To isolate "a," we can add "a" to both sides of the equation:

-9 + a = -3

Next, we can add 3 to both sides of the equation:

a - 9 + 3 = -3 + 3

Simplifying:

a - 6 = 0

To solve for "a," we can add 6 to both sides of the equation:

a - 6 + 6 = 0 + 6

Simplifying further:

a = 6

Therefore, when a is equal to 6, the value of the function y = -3 - a is equal to -9.