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BARSIC [14]
2 years ago
7

Determine whether the graph or equation is a function. State your reasoning why

Mathematics
2 answers:
Nezavi [6.7K]2 years ago
7 0

Answer:

Step-by-step explanation:

Its a function here's what i did m=1/2, b=-4

agasfer [191]2 years ago
4 0

Answer:

Step-by-step explanation:  

Well a function has only one answer for y for every x. f(x) or g(x) instead of y.  For example, f(4) means that we should find the value of our function when x equals 4. In this case this wouldn't be considered a function because it does not include any value for x if x equaled a certain number.

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What is the equation for a circle with a center at (-2,-4) that passes through the point (3,8)?
Margarita [4]
Check the picture below.

so, the center of the circle is the midpoint of that diametrical segment, and half that length is the radius.

\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ -2 &,& -4~) 
%  (c,d)
&&(~ 3 &,& 8~)
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{ x_2 +  x_1}{2}\quad ,\quad \cfrac{ y_2 +  y_1}{2} \right)
\\\\\\
\left( \cfrac{3-2}{2}~~,~~\cfrac{8-4}{2} \right)\implies \left( \frac{1}{2}~,~2 \right)\impliedby center

\bf ~~~~~~~~~~~~\textit{distance between 2 points}
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ -2 &,& -4~) 
%  (c,d)
&&(~ 3 &,& 8~)
\end{array}~~~ 
%  distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
d=\sqrt{[3-(-2)]^2+[8-(-4)]^2}\implies d=\sqrt{(3+2)^2+(8+4)^2}
\\\\\\
d=\sqrt{25+144}\implies d=\sqrt{169}\implies d=13\qquad\qquad \qquad  \stackrel{radius}{\frac{13}{2}}

\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{\frac{1}{2}}{ h},\stackrel{2}{ k})\qquad \qquad 
radius=\stackrel{\frac{13}{2}}{ r}
\\\\\\
\left( x-\frac{1}{2} \right)^2+(y-2)^2=\left( \frac{13}{2} \right)^2\implies \left( x-\frac{1}{2} \right)^2+(y-2)^2=\frac{169}{4}

3 0
3 years ago
Read 2 more answers
42 free throws attempted 37 made what’s the percent of shots he made
uysha [10]

Answer:

Its about 88%

Step-by-step explanation:

I got this answer by doing 37/42. :)

4 0
3 years ago
Read 2 more answers
Help me please or you can just ship me Irdc
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1 bag=2cups. so, he uses 1 and 0.25 bags. there are 3.75 bags left. hope that helps)
6 0
3 years ago
Geometry, please answer question ASAP
mestny [16]

Answer:

C

Step-by-step explanation:

Using the tangent ratio in the right triangle

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C = tan^{-1} (\frac{c}{a} )

7 0
3 years ago
Find the ratio of the 16 hours to 1 day<br>​
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Answer:

24 hrs= 1day

Ratio 16:24 or 2:3

7 0
2 years ago
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