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Naily [24]
4 years ago
11

Which graph represents a reflection of f(x) = 1/3 (9)x across the x-axis?

Mathematics
2 answers:
kati45 [8]4 years ago
8 0
Hey there...
Thats easy
Reflection across the x axis means it is a Vertical reflection. 
the correct choice is c
Nat2105 [25]4 years ago
7 0

The reflection across the x-axis means that point with coordinates (x,y) after reflection will have coordinates (x,-y).

In attached diagram you can see the graph of the function y=\dfrac{1}{3} 9^x (violet curve) and the graph of the function y=-\dfrac{1}{3} 9^x (green curve). The second graph is a reflection of the first graph across the x-axis. Then, the correct choice is C.

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Stock prices fell 250 points one day and 60 points the next day. What is the average change in stock prices over the two days
arsen [322]

Answer:

the average change in stock prices over the two days is -155

Step-by-step explanation:

The computation of the average change in stock price over the two days is shown below:

= (-One day points - second day points) ÷ number of days

= (-250 points - 60 points ) ÷ 2 days

= -310 points ÷ 2 days

= -155

Hence, the average change in stock prices over the two days is -155

We simply applied the above formula so that the average change could come

3 0
3 years ago
3. A theater has 60 seats in the first row, 68 seats in the second row. 76 seats in the
Airida [17]

Answer:

Step-by-step explanation:

arithmetic sequence: 60,68,76,......

a = 60

d = 68 - 60 = 8

an = a + (n-1)*d

a20 = 60 + 19 * 8

      = 60 + 152

     = 112

There are 112 seats in the 20th row

4 0
3 years ago
The midpoint is (blank,blank)
sveta [45]

Answer:

The answer to your question is Midpoint = (0, 1)

                                                    Equation of the bisector    y = 2x + 1

Step-by-step explanation:

Data

P (-4, 3)

Q (4, -1)

Process

1.- Find the midpoint

Xm = (-4 + 4)/2

Xm = 0/2

Xm = 0

Ym = (3 - 1)/2

Ym = 2/2

Ym = 1

Midpoint = (0, 1)

2.- Equation of the line

slope = (-1 - 3) / (4 + 4)

          = -4/8

          = -1/2

But the new line is perpendicular so the new slope is

       m = 2

Equation of the new line

        y - y1 = m(x - x1)

        y - 1 = 2(x - 0)

        y - 1 = 2x

        y = 2x + 1

6 0
3 years ago
What is 12.486 rounded to the nearest whole number?
Nataly_w [17]

Answer:

12.486 Rounded to the Nearest Whole Number

To round 12.486 to the nearest whole number consider the tenths' value of 12.486, which is 4 and less than 5. Therefore, we have to round down: the whole number ones place value of 12.486, 12, remains 12, and the decimal point and all digits (. 486) are removed.

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Two cities are 252 miles apart. How far are the two cities from one another on a map with a scale of 1/4 inches: 18 miles?
tekilochka [14]

Answer:

3.5 inches

Step-by-step explanation:

create a proportion:

inches / miles = inches / miles

let 'x' = distance in inches

<u>1/4</u> = <u> x </u>

18    252

18x = 252(1/4)

18x = 63

x = 63 / 18

x = 3.5

5 0
3 years ago
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