you add 1+1= 25 simple ;)
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There is one form of linear equation that is not a function, and that is when x = c, where c is a constant.
The equation x=c where c is a constant is the equation of a vertical line. It can't be a function but it is linear so the answer is no. For example, the vertical line produced by the linear equation x = 3 does not represent a function. We cannot write this equation so that y is a function of x because the only x-value is 3 and this "maps" to every real-number y.
A linear function is a function, or equation, that when graphed, will form a straight line.
how do we find linear feet or inche
A linear function is a function whose graph is a straight line.