Y=x+3 is it a linear function?

Step-by-step explanation:

A linear function has a variable raised to the power of 1 in it.  It takes on the form y = mx + b, where m is the slope and b is the y-intercept.  Because our function has x raised to a power of 1, then yes, this is linear (unlike something like 1/x or x²)

y > 1/3x

y < = -x + 4

hope this : )

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: