Question

Y=-2x+9 если x= - 1,x=2,x=2,5,x=7.

Answer 1

y = - 2x + 9

1) x = - 1

y = - 2 * (- 1) + 9

y = 2 + 9

y = 11

2) x = 2

y = - 2 * 2 + 9

y = - 4 + 9

y = 5

3) x = 2.5

y = - 2 * 2.5 + 9

y = - 5 + 9

y = 4

4) x = 7

y = - 2 * 7 + 9

y = - 14 + 9

y = - 5

Answer 2

To find the corresponding values of Y for the given values of x, simply plug each x value into the equation Y = -2x + 9 and calculate the result. Let's do that:

1. For x = -1: Y = -2(-1) + 9 Y = 2 + 9 Y = 11

2. For x = 2: Y = -2(2) + 9 Y = -4 + 9 Y = 5

3. For x = 2.5: Y = -2(2.5) + 9 Y = -5 + 9 Y = 4

4. For x = 7: Y = -2(7) + 9 Y = -14 + 9 Y = -5

So, the corresponding values of Y for the given values of x are as follows:

For x = -1, Y = 11 For x = 2, Y = 5 For x = 2.5, Y = 4 For x = 7, Y = -5