MATH 191 E0 Homework: Section 1.3 Score: 0 of 1 pt 1.3.51 21 of 38 (30 comp Use

Question

MATH 191 E0 Homework: Section 1.3 Score: 0 of 1 pt 1.3.51 21 of 38 (30 comp Use the graph of f to determine each of the following (a) the domain of f (b) the range of f (c) the zero(s) of f (d) f(-4.5) (e) the intervals on which f is increasing (1 the intervals on which f is decreasing (g) the values for which f(x)s (h) any relative maxima or minima (i) the value(s) of x for which f(x) = 3 0) Is f(-1) positive or negative? 22 4 6 8 10 (a) The domain off is (Type your answer in interval notation.)

Explanation / Answer

a. Domain

x values are from -infinity to 1. SO domain =(-infinity,1]

b. range

y values are from -infinity,3. So range is (-infinity,3)

a. zeroes

x=-6,1

d. f(-4.5)

when x=-4.5, y=1

So f(-4.5)=1

e. Function is increasing from (-infinity,-2)

f.Function is decreasing in (-2,2]

g. THe graph is greater than 0 at <-6<x<=2

h. none

i. f(x)=3

y is 3 at x=2, so x=2

j. f(-1)=2.5 which is positive

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