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Mama L [17]
2 years ago
6

Draw a line having a slope of 1/3 and y-intercept of -1

Mathematics
1 answer:
Lilit [14]2 years ago
8 0
Equation for slope=1/3 and y-intercept=-1 is:
y = mx + b
where m is slope and b is y-intercept.
So, equation becomes
y = -1x + 1/3
Now put different values of x in the equation to get corresponding value of y.
x          y
0         1/3
1        -2/3
2        -5/3
3        -8/3
-1       4/3
-2       7/3
-3       10/3


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The function of f(x) = 3x + 2 has a domain of -3 < x < 5. What is the domain of f-1(x)?
Flura [38]
<h3>Answer:    -7 < x < 17</h3>

====================================================

Explanation:

Plug in the lower bound of the domain, which is x = -3

f(x) = 3x+2

f(-3) = 3(-3)+2

f(-3) = -9+2

f(-3) = -7

If x = -3, then the output is y = -7. Since f(x) is an increasing function (due to the positive slope), we know that y = -7 is the lower bound of the range.

If you plugged in x = 5, you should find that f(5) = 17 making this the upper bound of the range.

The range of f(x) is -7 < y < 17

Recall that the domain and range swap places when going from the original function f(x) to the inverse f^{-1}(x)

This swap happens because how x and y change places when determining the inverse itself. In other words, you go from y = 3x+2 to x = 3y+2. Solving for y gets us y = (x-2)/3 which is the inverse.

-----------------------

In short, we found the range of f(x) is -7 < y < 17.

That means the domain of the inverse is -7 < x < 17 since the domain and range swap roles when going from original to inverse.

6 0
3 years ago
A rectangle on a coordinate plane has vertices at (7,5),(-7,5),(-7,-2),and (7,-2) what is the perimeter of the rectangle?
Nadya [2.5K]

Answer:

Your Perimiter is 42

Step-by-step explanation:

Distance from 7,5 to -7,5 is 14

Distance from -7,5 to -7,-2 is 7

Then we double both those numbers as it is a rectangle

2l + 2w = Per...

28 + 14 = 42

MARK AS BRAINLIEST

5 0
3 years ago
What is the answer to 5 + 7x – (2x + 3)
VikaD [51]

Answer:

2+5x?

Step-by-step explanation:

3 0
3 years ago
Please I need help!!
nata0808 [166]

The largest  possible complete design that can be painted on a 24’ x 16’ wall is 252' by 189'

<h3>Scale drawing</h3>

Scale drawing involves drawing a drawing in a different size and dimension that is proportional to the original dimension

<h3>Dimensions</h3>

The dimensions of the design for the farm scene painting is given as:

12" \times 9"

The dimensions of the wall is given as:

24' \times 16'

Convert feet to inches

24' \times 16' = (24 \times 12") \times (16 \times 12")

24' \times 16' = (288") \times (192")

Divide the dimensions of the wall by the painting to get the scale ratios (k)

k = \frac{288}{12}

k = 24

Also, we have:

k =\frac{192}{9}

k =21.33

Remove decimal (do not approximate)

k =21

By comparison;

21 is less than 24

Multiply 21 by the dimensions of the painting

So, we have:

Length = 12 \times 21 = 252

Width = 9 \times 21 = 189

Hence, the largest  possible complete design that can be painted on a 24’ x 16’ wall is 252' by 189'

Read more about scale drawings at:

brainly.com/question/810373

7 0
2 years ago
What is the period, in seconds, of the simple harmonic motion described by the equation x = 5sin(8πt)?
mart [117]

<span>t=0.007958x
</span>
Hope that helps!

3 0
3 years ago
Read 2 more answers
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