Question

Функция y=-3x+1 x=4 y=?, y=-5 x=? A(-2;7)​

Answer 1

Ответ:

Объяснение:

y=-3x+1,  y=-3*4+1=-12+1=-11,     -5=-3x+1,   3x=6,  x=2

A(-2;7),   7=-3*(-2)+1,   7=6+1,  7=7, значит т.А принадлежит этой функции

Answer 2

Ответ:  y=-3x+1 x=4 при этом у=-3×4+1=-11.         А при у=-5.  х=2           -5+3х-1=-6+3х=-6=-3х. х=2

Answer 3

Let's solve the given problems step by step:

1. Given the equation y = -3x + 1, and x = 4, we need to find the value of y.

To find the value of y, substitute x = 4 into the equation:

y = -3(4) + 1 y = -12 + 1 y = -11

So, when x = 4, y = -11.

2. Given the equation y = -5, we need to find the value of x.

Since the equation is y = -5, it means that the value of y is always -5, regardless of the value of x. In this case, there is no dependence on x, so any x value will not change the value of y, and it remains y = -5.

3. Given the point A(-2, 7), we need to find the values of x and y.

The point A(-2, 7) means that the x-coordinate of the point is -2, and the y-coordinate of the point is 7.

So, x = -2 and y = 7 for the point A(-2, 7).

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