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Allushta [10]
3 years ago
8

The graph is shown for the equation y = –x + 4.

Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer:

Option C. y=-\frac{1}{2}(2x-8)

Step-by-step explanation:

we know that

If a system of two linear equations has an infinite number of solutions, then both equations must be identical

The given equation is

y=-x+4

<u><em>Verify each case</em></u>

Option A. we have

y=-4(x+1)

apply distributive property

y=-4x-4

Compare with the given equation

-x+4 \neq -4x-4

Option B. we have

y=-(x+4)

remove the parenthesis

y=-x-4

Compare with the given equation

-x+4 \neq -x-4

Option C. we have

y=-\frac{1}{2}(2x-8)

apply distributive property

y=-x+4

Compare with the given equation

-x+4=-x+4

therefore

This equation with the given equation form a system that has an infinite number of solutions

Option D. we have

y=x+4

Compare with the given equation

-x+4 \neq x+4

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sergejj [24]
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5 0
3 years ago
A kayak rental company charges $25.00 to rent a kayak and $3.50 for each half hour it is used.
pogonyaev

Answer:

Option D (r(t) = 3.50t +25 ; r(8) = 53)

Step-by-step explanation:

The fixed cost to rent the kayak $25. This is the cost which remains fixed irrespective of the usage of the kayak. The variable cost of using the kayak is the cost which depends on the usage of the kayak. It is mentioned that the kayak is used for 4 hours and the company charges $3.5 for every half hour. The cost function is given by:

r(t) = 25 + 3.5t ; there r is the total cost of using the kayak and t is the number of half-hours the kayak is used.

4 hours means that there are 8 half-hours. Therefore, t=8. Put t=8 in r(t).

r(8) = 25 + 3.5*(8) = 25 + 28 = 53.

Therefore, Option D is the correct answer!!!

3 0
3 years ago
Read 2 more answers
Why are different intervals used when restricting the domains of the sine and cosine functions in the process of defining their
umka21 [38]

Answer:

See below

Step-by-step explanation:

The interval must be chosen so that the function is one-to-one, and the sine and cosine functions are not one-to-one on the same intervals.

3 0
2 years ago
What is the perimeter of this shape? Use numbers only.
aniked [119]

Answer:

30 m

Step-by-step explanation:

You simply add the lengths of all the sides. 3 m is not needed for this.

8 0
2 years ago
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Write an equation in slope-intercept form of the line that passes through (6, -1) and (3, 47)
katrin2010 [14]

Answer:

Step-by-step explanation:

(47+1)/(3-6) = 48/-3 = -16

y + 1 = -16(x - 6)

y + 1 = -16x + 96

y = -16x + 95

6 0
3 years ago
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