When x is 4 the diagonal line is on the first line above the 4 so that would be y=1
True, because "or" is a logical sum.
true = 1
false = 0,
sum (1+0) = 1, true.
Ofcourse it is a linear function
why because every of x value of this function is 23 in result always
... so when we draw a chart it will be line on 23 coordinate ;)