determining whether a function is linear constant or neither

Question

y=f(x)=5x+0,5(7-10x)

Answer 1

Omar, we do not use comma to separate the integer part from the decimal fraction part.

Simplify the expression that defines the function.

you will be left with merely a constant.

Answer 2

y=f(x)=5x+0.5(7-10x)

 

y = 5x + 3.5 - 5x

 

y = 3.5

 

While 3.5 is a constant, in the format y = 3.5 or f(x) = 3.5,

this graphs as a horizontal line with slope m=0

and y-intercept at (0, 3.5)