Question

y=1/2x+1 при каких значениях х у=0? у=4?

Answer 1

x/2 + 1 = y

y = 0:

x/2 + 1 = 0

x/2 = -1

x = -2

 

y = 4:

x/2 + 1 = 4

x/2 = 3

x = 6