Question

Для функции y=-2в квадрате +7x-3 найти y(-3)​

Answer 1

Ответ:

y = -20

Объяснение:

y = 4 + 7x - 3

y = 7x + 1

y = 7*(-3) + 1

Answer 2

To find the value of y when x is -3 in the given function y = -2x^2 + 7x - 3, you need to substitute x with -3 and calculate y.

y = -2(-3)^2 + 7(-3) - 3

Now, let's solve this step by step:

1. First, calculate the square of -3: (-3)^2 = 9

2. Multiply the square by -2: -2 * 9 = -18

3. Multiply 7 by -3: 7 * -3 = -21

4. Finally, sum up all the terms: y = -18 + (-21) - 3 y = -18 - 21 - 3 y = -42

So, when x is -3, the value of y in the function is -42.