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tresset_1 [31]
3 years ago
12

Helppppp please will give brainlist ​

Mathematics
1 answer:
NeX [460]3 years ago
7 0

Answer:

D or answer 4                   y=-5/2x+7

Step-by-step explanation:

Well we can first start of by finding the y-intercept.

Note that when x=0, you can find your y-intercept.

Knowing this, and looking at the table, 7 is the y-intercept because when y=7, x=0.

So we can eliminate choices 'a' and 'c,' or answers 1 and 3, because they have the y-intercept as -7, when it's just 7.

Please know that in the equation:

y = mx + b

y = y-coordinate or any given point

mx = slope

b = y-intercept

Now we must find slope

To find the slope we need to do:

(y2 - y1) / (x2 - x1) or rise/run

The two coordinates I choose to use is (0, 7) and (6, -8).

(-8 - 7) / (6 - 0) = -5/2

-5/2 is the slope

Finally, look for an equation that has 7 as the y-intercept and -5/2 as the slope.

Answer: D or answer 4

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Explain why the mapping diagram below represents a function.
tiny-mole [99]

Answer:

Because there is only one out put for each domain this mapping diagram is a function.

Step-by-step explanation:

Two sets are involved.  There is a directional property, the relation is defined from one set called the domain on to another set called the codomain. A function is a relation that has exactly one output for each input in the domain.

6 0
3 years ago
Matt decides the length of his table will be 15 in. He calculates that the area of the table is 30 in. squared. Determine if Mat
Allushta [10]

Answer:No Matt's calculation is not correct.

Step-by-step explanation:

We have to multiply by the number of the area.If it is 4 inches we multiply by 4

15 x 4 =60

A=4 inches squared

A=LxW (length x width )

so you can say that:

Matt is incorrect because He skipped  the step of multiplying 2 by 2 in the formula which is where we get 4 from.

8 0
3 years ago
X^3 + 6x + 5 =??<br> Explain your answer..
vovikov84 [41]

x^3 + 6x + 5 =

is the answer to the question you asked

7 0
3 years ago
Select the correct answer.
Lisa [10]

Answer:

B

Step-by-step explanation:

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4 0
3 years ago
What is 3x eqauls -3x plus 2
sergiy2304 [10]

Answer:

x = \frac{1}{3} or 0.33333333

Step-by-step explanation:

3x = -3x + 2 (Given)

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\frac{6x}{6y} = \frac{2}{6}

x = \frac{1}{3} or 0.3333333

8 0
3 years ago
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