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Apcalculusabsummary

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LIMITS & CONTINUITY - Discontinuities: + jump: limit DNE + holes (removable): limit exists + infinite (vert. asym.): DNE - Notation: lim x->a f(x) = y-value - Two-sided limits: two-sided limit exists if BOTH sides approach the same point - One-sided limits: + : from positive side − : from negative side - Evaluating a Limit: substitution factoring: top cancel bottom -> hole -> limit exists - Limits depend on the direction NOT the point - Setting a table for limits: tbl set (2nd window) -> tbl start (where your limit is going) -> △tbl: 0.01 - Piecewise function: figure out where your turnaround point first - Limits and a piecewise function: plug x in both functions to see if the sides meet - Limits at Infinity: rational functions + If denominator ^ > than numerator -> limit goes to 0 + If denominator ^ < than numerator -> limit goes to ± ∞ + If numerator and denominator = -> limits goes to ratio of coefficients + Plugging a hole: need to know the limit => discontinuity? -> limit at discontinuity -> y-value of plug -> extended function - Continuous if lim x->a f(x) = f(a) - Intermediate Value Theorem: if a function f(x) is continuous on the interval [a,b], then the function takes on all x and y values between f(a) and f(b) - Secant Line: looking at at least 2 points on the curve - Average Rate of Change: = 𝑓(𝑏) − 𝑓(𝑎) 𝑏−𝑎 - Tangent Line: + slope of tangent = slope of function at x = a (a is point of tangency) + slope of tangent is the instant ...
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