50 points Which function is graphed?
-8 -6 -4 -2 0
2
6 8
T 90
O A. y - (x² +
x+ + 4, X > 2
l-x+4, XS2
(x²+4, x<2
O B. y =
|-x+4, X22
C. y =
(x2 +4, X5 2
|-x+ 4, x < 2
D. y =
x2 +4, X 22
l-x+4, x>2

9

Step-by-step explanation: Problem. Evaluate the expression log2

1

8 without using a calculator.

Solution. We know that 1

8 = 2−3

. Therefore, log2

1

8 = −3.

Problem 6

Problem. Write the exponential equations as logarithmic equations.

(a) 272/3 = 9.

(b) 163/4 = 8.

Solution. (a) The base is 27 and the exponent (logarithm) is 2/3. So the logarithmic

equation is

log27 9 =

2

3

.

(b) The base is 16 and the exponent (logarithm) is 3/4. So the logarithmic equation

is

log16 8 =

3

4

.

Problem 9

Problem. Sketch the graph of the function y = 2x by hand

option c. is correct

Step-by-step explanation:

hope helpful

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