An animal clinic charges $40 for vaccinations of kittens and $55 for vaccinations of puppies. last week, the clinic earned $1,450 from vaccinations, including 14 puppies. how many kittens were vaccinated at the clinic last week?

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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: