How to find the zeros of a function using the calculator: how to tell the possible rational roots of a polynomial function
how you can test one of the possible rational roots to see if it is indeed a zero
how to find the domain and range of a function
how to identify a horizontal asymptote from the equation

I need this shortly summarized. Thank you

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step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system