Question

При каком значении х значение зависимой переменной у=-0,5х+4 равно 1,5;-10,5?​

Answer 1

Пошаговое объяснение:

Дано: у(х) = -0,5*х +4

Находим формулу для Х(у)

1) 0,5*x = 4 - y

2) x =  (4 - y): 0.5 = 8 - 2*y

3)  x = 1.5,   y = 8 - 2*1.5 = 8 - 3 = 5 - ответ

4)  х = -10,5,  у = 8 + 21 = 29 - ответ

Answer 2

To find the value of 'x' for which the dependent variable 'у' is equal to 1.5 or -10.5 in the equation у = -0.5x + 4, we can substitute the given values of 'у' and solve for 'x'.

1. For у = 1.5: у = -0.5x + 4 1.5 = -0.5x + 4

Now, let's isolate 'x' on one side of the equation:

-0.5x = 1.5 - 4 -0.5x = -2.5

Finally, divide both sides by -0.5 to solve for 'x':

x = -2.5 / -0.5 x = 5

So, when у = 1.5, the value of 'x' is 5.

2. For у = -10.5: у = -0.5x + 4 -10.5 = -0.5x + 4

Now, isolate 'x':

-0.5x = -10.5 - 4 -0.5x = -14.5

Divide both sides by -0.5:

x = -14.5 / -0.5 x = 29

So, when у = -10.5, the value of 'x' is 29.

In summary:

• For у = 1.5, x = 5.
• For у = -10.5, x = 29.