Simply the rational expression. state any restrictions on the variable. k2-k-2/k2-4k-5

We are given

Firstly, we will factor numerator and denominator

Restrictions:

we know that denominator can not be zero

so, we can set denominator =0

and solve for k to get restrictions

Simplification:

we can see that k+1 gets cancelled

so, we get

..........Answer

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step-by-step explanation:

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: