Question

Дана функция y=3x+7. Найдите значение функция. а) x=2 б) x= -3 в) x= -2,5

Answer 1

А)у=3*2+7=13
у=13
б)у=3*(-3)+7=-2
у=-2
в)у=3*(-2,5)+7=-0,5
у=-0,5

Answer 2

To find the values of the function for different values of x, simply substitute the given x values into the function y = 3x + 7.

a) When x = 2: y = 3(2) + 7 y = 6 + 7 y = 13

So, when x is 2, the value of the function is y = 13.

b) When x = -3: y = 3(-3) + 7 y = -9 + 7 y = -2

So, when x is -3, the value of the function is y = -2.

c) When x = -2.5: y = 3(-2.5) + 7 y = -7.5 + 7 y = -0.5

So, when x is -2.5, the value of the function is y = -0.5.