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mars1129 [50]
3 years ago
10

PLZ HELP MARKIN BRAINIEST!!!

Mathematics
1 answer:
Dahasolnce [82]3 years ago
8 0

From the graph, when x = 1, y = 57,000.

Replace x with 1 in the equations and see if any of the Y 's equal 57,000 :

y = -2610.82(1) + 47860.82 = 45,250

y = 219(1)^2 - 6,506.78(1) + 59,385 = 219 - 6506.78 + 59385 = 53,097.22

y = 54041.5(0.9)^1 =  48,637.35

y = 10,504.6 (1.1)^1 = 11,555.06

The second equation is the closest. so try another x value to see if it is close to the Y value:

Let's try x = 14:

y = 219(14)^2 - 6506.78(14) + 59,385 = 42924 - 91094.92 + 59385 = 11,214.08

This is close to Y = 12,00 shown on the graph

SO the closest equitation is y = 219x^2 - 6506.78x + 59385

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</span>_________________________________________________________

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Explanation:
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      In an expression with 2 (TWO) terms;  that is, in a "binomial expression", 
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      →  So:  We are given:  " <span>√x + 2√b " .
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      →  Note that this is a "binomial expression" ;

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To find the "conjugate" of the given binomial expression:

     </span>→  " <span>√x + 2√b "  ; 

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     </span>→  " √x − 2√b "  ; 

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___________________________________________________________
→  " √x − 2√b " ;   is the "conjugate" of the expression:  " <span>√x + 2√b " . 
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</span>→  {that is:  " √x − 2√b " ;  is the conjugate.}.
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