4-13 of 19 (13 complete) This Quiz: 19 pts Answer the questions about the follow

Question

4-13 of 19 (13 complete) This Quiz: 19 pts Answer the questions about the following function (a) Is the point 14-on the graph off? O Yes (b) If x 1, what is fix)? (Type an integer or a simplified fraction) ewe st x+ 6 (a) is the point the graph of ? (b) If x 1, what is f(x)? What point is on the graph of f? (c) If fox) - 2, what is x? What point(s) are on the graph of f? (d) What is the domain of f? (e) List the x-intercept(s) if any, of the graph of f (0) List the y-intercept, if any, of the graph of f Sex der Using this information, list a point on the graph off Simplify your answer Type an ordered pair, using integers or fractions) in (c) Iffx) 2, what is x? (Type an integer or a simplified fraction. Use a comma to separate answers as needed) Using this information, list a point on the graph of f Simplify your answer. Type an ordered pair, using integers or fractions) (d) What is the domain of Click to select your answerrs)

Explanation / Answer

a)
put x=4
f(x) = (4+6)/(4-8)
= 10 / (-4)
= -5/2
Answer: NO

b)
f(x) = (1+6)/(1-8)
= 7 / (-7)
= -1
Answer: -1

c)
f(x) = (x+6)/(x-8)
2 = (x+6)/(x-8)
2x - 16 = x+6
x = 22
Answer: 22

d)
x can take any value except x=8 because this make denominator 0
Answer: R - {8}

e)
x intercept is obtained by putting f(x) = 0
so,
(x+6)/(x-8) = 0
x = -6
Answer: x=-6

f)
x intercept is obtained by putting x = 0
so,
y = (0+6)/(0-8)
y = -3/4

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