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3 years ago

What is the slope of the following equation? y = -x + 3

Mathematics

1 answer:

fomenos3 years ago

6 0

-x bc 3 is the y- intercept

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Factorise 2xy²+8y please

OverLord2011 [107]

Answer:

Step-by-step explanation

2xy² +8y

= 2y (xy+8)

Just see what is the maximum common numbers u can find

5 0

3 years ago

Read 2 more answers

If k is the midpoint of JL, JK =8x + 11 and KL =14x-1, find JL

katen-ka-za [31]

J------------K------------L
8x+11 14x-1

<span>If K is the midpoint of JL then JK = KL
8x+11 = 14x-1
11 + 1 = 14x - 8x
12 = 6x
x = 12/6
x = 2

JK = 8x + 11 = 8*2 + 11 = 16+11 = 27
KL = JK = 27

JL = JK + KL = 27 + 27 = 54</span>

3 0

4 years ago

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Which algebraic expression represents “Nicholas tripled his workout time”?

PolarNik [594]

Answer:

3 w

Step-by-step explanation:

because if you think about it nick was doing a lot and then he needs to triple so the equation would be 3 w

6 0

2 years ago

Identify the minimum value of the function y = 2x^2 + 4x

statuscvo [17]

The function's minimum value is -2 at x = 1

Step-by-step explanation:

Given function is:

$y = 2x^2+4x$

In order to find the maxima or minima of a function, first of all, we have to find the derivative of the function

So,

Taking derivatives on both sides

$\frac{d}{dx}(y) = \frac{d}{dx} (2x^2-4x)\\\frac{dy}{dx} = \frac{d}{dx} (2x^2) - \frac{d}{dx} (4x)\\y' = 2 \frac{d}{dx} (x^2) - 4 \frac{d}{dx}(x)\\y' = 2 (2x) \frac{d}{dx}(x) - 4(1)\\y' = 4x (1) - 4\\y' = 4x - 4$

We have to find the roots of first derivative

So,

$4x-4 = 0\\4x = 4\\x = \frac{4}{4} \\x = 1$

Taking second derivative

$\frac{d}{dx} (y') = \frac{d}{dx} (4x-4)\\y'' = 4$

We can see that the second derivative of the function is a constant so the function has a minima at x=1

For minimum value, putting x = 1 in the function

$= 2(1)^2 - 4(1)\\= 2(1) - 4\\= 2-4\\= -2$

The function's minimum value is -2 at x=1

Keywords: Functions, minimum value

Learn more about functions at:

#LearnwithBrainly

8 0

3 years ago

The sum of 7 times a number and 8 is 4

Dovator [93]

Answer:

-4/7

Step-by-step explanation:

Let the number be x

7x+8=4

7x=4-8

x=-4/7

4 0

4 years ago

What is the slope of the following equation? y = -x + 3​

What is the slope of the following equation? y = -x + 3