Question

Прямая y =-3x+b проходит через точку a(1;-1), если b=?

Answer 1

Первую координату (1) подставляешь вместо х, а вторую (-1) вместо у и находишь b

Answer 2

To find the value of b for the equation of the line y = -3x + b passing through the point a(1, -1), we can substitute the coordinates of the point into the equation and solve for b.

Let's substitute x = 1 and y = -1 into the equation: -1 = -3(1) + b

Simplifying the equation: -1 = -3 + b

To isolate b, we can add 3 to both sides of the equation: -1 + 3 = b 2 = b

Therefore, the value of b is 2. So, the equation of the line y = -3x + 2 passes through the point a(1, -1).