Question

1. y = 2x - 15 если х = 3,5, то у = если у = -5, то х = Проходит ли через точку А(10;5)

Answer 1

1) у=2*3.5-15=-8. (3.5;-8)
Не проходит через точку.
2) у=2*(-5)-15=-25. (-5;-25)
Не проходит через точку.

Answer 2

1. If we substitute x = 3.5 into the equation y = 2x - 15, we can calculate the value of y:

y = 2(3.5) - 15 y = 7 - 15 y = -8

So, when x = 3.5, y = -8.

2. If we substitute y = -5 into the equation y = 2x - 15, we can solve for x:

-5 = 2x - 15 2x = -5 + 15 2x = 10 x = 10/2 x = 5

So, when y = -5, x = 5.

3. To check if the point A(10, 5) lies on the line represented by the equation y = 2x - 15, we substitute x = 10 and y = 5 into the equation:

5 = 2(10) - 15 5 = 20 - 15 5 = 5

Since the equation is satisfied when x = 10 and y = 5, the point A(10, 5) does lie on the line y = 2x - 15.