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sergij07 [2.7K]
3 years ago
10

Identify all statements that are true when graphing the following square root function: f(x)=-√x-2 + 3

Mathematics
1 answer:
Mars2501 [29]3 years ago
4 0

Answer:

II. The vertical shift is up 3 spaces.

III. The square root graph will flip.

Step-by-step explanation:

The given equation is;

f(x) =  -  \sqrt{x - 2}  + 3

From the given function, we deduce the parent function to be:

g(x) =  \sqrt{x}

So we can see that the transformation is of the form.

f(x) =  - g(x - 2) + 3

So there is a horizontal shift of 2 units to the right.

There is a vertical upward shift by 2 units.

There is also a reflection in the x-axis, so the parent graph will flip.

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Hi, Please i need help with this question. Workings would be deeply appreciated .
kupik [55]

Answer:

k = ⅕  

Step-by-step explanation:

The slope-intercept equation for a straight line is

y = mx + b, where

m = the slope and

b = the y-intercept

Data:

(3,4)     = a point on the line

(3k,0)   = x-intercept

(0,-5k) = y-intercept

Calculations:

1. Slope

m = (y₂ - y₁)/(x₂ - x₁) = (-5k - 0)/(0 - 3k) = -5/(-3) = ⁵/₃

This makes the equation

y = ⁵/₃x - 5k

2. k

Insert the value of the known point: (3,4)

4 = (⁵/₃)(3) - 5k

4 = 5 - 5k

-1 = -5k

k = ⅕

The figure below shows your graph passing through (3,4) with intercepts 3k and -5k on the x- and y-axes respectively .

 

8 0
4 years ago
Find a. Round to the nearest tenth.
Kazeer [188]

9514 1404 393

Answer:

  21.8 cm

Step-by-step explanation:

A useful way to write the Law of Sines relation when solving for side lengths is ...

  a/sin(A) = b/sin(B)

Then the solution for 'a' is found by multiplying by sin(A):

  a = sin(A)(b/sin(B)) = b·sin(A)/sin(B)

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We need to know the angle A. Its value is ...

  A = 180° -75° -31.8° = 73.2°

Then the desired length is ...

  a = (22 cm)sin(73.2°)/sin(75°) ≈ (22 cm)(0.9573/0.9659)

  a ≈ 21.8 cm

_____

I like to use the longest side and largest angle in the equation when those are available. That is why I chose 75° and 22 cm.

6 0
3 years ago
When two fractions are between 0 and 1/2, how do you know which fractions is greater?
bixtya [17]
The number with the smaller denominator is bigger
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4 years ago
Find the value of b. Round your answer to the nearest tenth.
adoni [48]
I dont know lmk tho!
5 0
3 years ago
Read 2 more answers
A radio telescope has a parabolic dish. Radio signals are collected at the focal point (focus) of the parabola. The distance fro
Alex777 [14]

Answer:

45 feet deep

Step-by-step explanation:

First the formula for Parabola is: 4py=x2, we will make it as if it were in the center of the graph.

Now P is the distance from the vertex to the focus or to the directrix which is equal to 20.

4(20)y=x2

80y=x2

Now we just have to use one knwon value of X in the maximum point of the dish, is the diameter of the dish is 120 feet that is the maximum x, and we know that 120 feet is te distance between the widest -x and x, so those would be: -60 and 60.

We will use 60 as our value:

80y=x^{2} \\80y=60^{2} \\80y=3600\\y=\frac{3600}{80} \\y=45

So we know that the depth of the parabolic dish is 45 feet.

6 0
4 years ago
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