Question

График функции y=kx-3 проходит через точку А(2;5). Найдите значение k.

Answer 1

Подставим точку в функцию:
x = 2
y = 5

y = kx - 3
5 = 2k - 3
2k = 8
k = 4

Ответ: 4

Answer 2

To find the value of k, we can use the information that the graph of the function passes through the point A(2, 5). When a point (x, y) lies on the graph of a function, the coordinates of the point satisfy the function's equation.

In this case, the point A(2, 5) lies on the graph of the function y = kx - 3. So, we can substitute x = 2 and y = 5 into the equation and solve for k:

5 = k * 2 - 3

Now, let's isolate k:

5 + 3 = k * 2

8 = k * 2

Finally, divide both sides by 2 to find the value of k:

k = 8 / 2

k = 4

So, the value of k is 4.