Question

Функция задана формулой у=к/2х-3. Найдите к, если при х=1,2, у=3.

Answer 1

у=к/2х-3

3=к/2,4-3

3+3=к/2,4

6=к/2,4

к=2,4 х 6

к=14,4

Answer 2

To find the value of "к" (which I assume is the variable "k"), we can use the given values of "x" and "y" and plug them into the function formula.

The function is given as: у = к/(2х) - 3

We are given two sets of data points:

1. When х = 1, у = 3
2. When х = 2, у = 3

Let's start by plugging in the first set of values:

у = 3 х = 1

Substitute these values into the function:

3 = к/(2 * 1) - 3 3 = к/2 - 3

Now, let's solve for к:

3 + 3 = к/2 6 = к/2

To isolate к, multiply both sides by 2:

2 * 6 = к к = 12

So, к (k) is equal to 12 when х (x) is 1 and у (y) is 3.