What is the equation of a line that contains point (2, -1) and is parallel to y = *x+3 ?

Mathematics

1 answer:

prohojiy [21]3 years ago

8 0

Answer:

6 degrees

Step-by-step explanation:

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K less than twenty four

liraira [26]

Answer: K-24

Step-by-step explanation: It's basically just subtracting by replacing the number with one of your answer choices or its an expression.

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2 years ago

Read 2 more answers

Is the answer a, b, c, or d.

ale4655 [162]

The correct answer is d.

We have the following system of linear equations:

(I) $4x+7y=-14$
(II) $8x+5y=8$

Let's use the elimination method, then let's multiply the equation (1) $\times(-2)$ and subtracting (I) and (II):

(I) $-2(4x+7y)=-2(-14)$
∴ $-8x-14y=28$

(I) $-8x-14y=28$
(II) $8x+5y=8$
____________________
(III) $-9y=36$

∴ $y=-4$

We can find the value of x by substituting y either in (I) or (II). Thus, from (I):

$4x+7(-4)=-14$
∴ $4x-28=-14$
∴ $4x=14$
∴ $x=\frac{14}{4}$
∴ $\boxed{x=\frac{7}{2}}$

Let's substitute the values of x and y into (I) and (2)

(I) $4(\frac{7}{2})+7(-4)=14-28=-14$
(II) $8(\frac{7}{2})+5(-4)=28-20=8$

Finally the answer is:

$\boxed{x=\frac{7}{2} \rightarrow x= 3 \frac{1}{2}}$

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2 years ago

What lies between 1 by 2 and 2 by 3 a) 1 by 2 b) 4 by 5 c) 5 by 6 d)

Amiraneli [1.4K]

Answer:

I think the answer would be A .

7 0

3 years ago

Given the polynomial 2x^3+18x^2-18x-162, what is the value of the constant "k" in the factored form?

maxonik [38]

2x³+18x²-18x-162 =
2(x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)

Answer: k=3

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