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Elden [556K]
2 years ago
14

I need help with this question for math. I would love for some help thank you.

Mathematics
2 answers:
pochemuha2 years ago
6 0

Answer:

y= -3x+1

Step-by-step explanation:

Let's start with the y-intercept (initial value). The y-intercept is where the line intersects the y-axis, so the x value should be 0. Here, the y-intercept is (0,1).

The slope is equivalent to the rise over run. We rise three and go to the left 1 which gives us a slope of negative 3 since we went to the left instead of the right.

Equation for a line:

y=mx+b where m is the slope and b is the y-intercept.

We plug in the slope and y-intercept in and get...

y= -3x+1

Nastasia [14]2 years ago
4 0

Answer:

  • slope: -3
  • initial value: 1
  • equation: y = -3x +1
  • partial variation

Step-by-step explanation:

<u>Slope</u>

To find the slope of the line, it is useful to find two grid intersections that the line passes through. If one of those is on the y-axis, that is a good place to start. Here, that one is (0, 1).

Another can be see up and to the left, at (-1, 4).

The slope formula can be used to find the slope between these points:

  m = (y2 -y1)/(x2 -x1)

  m = (4 -1)/(-1 -0) = 3/-1 = -3

The slope of the line is -3.

__

<u>Initial value</u>:

This is the value that the function has when x=0. It is the y-intercept. We identified that value in the previous section as 1.

The initial value is 1.

__

<u>Equation</u>:

The slope-intercept equation of the line is of the form ...

  y = mx + b . . . . . . . where m is the slope (-3) and b is the y-intercept (1).

Filling in the values we know, the equation is ...

  y = -3x +1

__

<u>Variation</u>:

The line represents "direct variation" only if the y-intercept is zero. That is, the equation will be of the form ...

  y = kx

with no added constant. The value "k" is called the constant of proportionality, or "rate of change."

You will notice the equation for the line on this graph has a y-intercept of 1, so <em>does not represent direct variation</em>. Of the two answer choices, the appropriate one is ...

  Partial Variation

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F(x)=x2 what is g(x)?
Oksi-84 [34.3K]

g(x) = (1/4)x^2 . correct option C) .

<u>Step-by-step explanation:</u>

Here we have , f(x)=x^2  and we need to find g(x) from the graph . Let's find out:

We have ,  f(x)=x^2   . From the graph we can see that g(x) is passing through point (2,1 ) . Let's substitute this point in all of the four options !

A . g(x) = (1/4x)^2

Putting (2,1) in equation g(x) = (x/4)^2 , we get :

⇒ g(2)= (\frac{2}{4} )^2

⇒ 1\neq \frac{1}{4}

Hence , wrong equation !

B . g(x) = 4x^2

Putting (2,1) in equation g(x) = 4x^2 , we get :

⇒ g(2)=4(2)^2

⇒ 1\neq 64

Hence , wrong equation !

C . g(x) = (1/4)x^2

Putting (2,1) in equation g(x) = (1/4)x^2 , we get :

⇒ g(2)= (\frac{1}{4} )2^2

⇒ 1= 1

Hence , right equation !

D . g(x) = (1/2)x^2

Putting (2,1) in equation g(x) = (1/2)x^2 , we get :

⇒ g(2)= (\frac{1}{2} )2^2

⇒ 1\neq 2

Hence , wrong equation !

Therefore , g(x) = (1/4)x^2 . correct option C) .

8 0
3 years ago
NEEDS TO BE DONE TODAY SOMEONE PLEASE
eduard

Answer:

Step-by-step explanation:

16.

RT=17.885

RS=9.741

Angle T=33°

17

AB=7.077

Angle B= 47.291°

Angle A= 42.709°

19

∠A = 180° - B - C = 1.36944 rad =

A=78.463°

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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