Y=-1,4x+b, A (-4;10)

To find the value of b in the equation y = -1.4x + b, we can substitute the coordinates of point A (-4,10) into the equation and solve for b.

Plugging in the values of x and y into the equation, we have: 10 = -1.4(-4) + b

We can simplify the equation: 10 = 5.6 + b

To isolate b, we can subtract 5.6 from both sides of the equation: 10 - 5.6 = b 4.4 = b

Therefore, the value of b is 4.4.