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dalvyx [7]
3 years ago
11

What is the equation of the line that passes through (4, 3) and (-4, -1)?

Mathematics
1 answer:
iren [92.7K]3 years ago
4 0

Answer:

y=0.5x+1

Step-by-step explanation:

-1-3= -4

-4-4=-8

-4÷-8=1/2

y-3= 0.5x-2

y=0.5x+1

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The equation 3x-6y-2=0 into slope form. Long answer please.
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The slope form: y = mx + b
We have:
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3x - 2 = 6y    |divide both sides by 6
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8 0
3 years ago
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What values of x make the equation x2 + 9x – 22 = 0 true? Check all that apply. –11 –2 0 2 11
Marat540 [252]
Answer:  x = 2 ;  -11 .
___________________________________
Explanation:
_____________________________________________
Given the equation:
_____________________________________________
  x² + 9x −<span> 22 = 0  ;  Solve for:  "x" ;
_____________________________________________

Let us factor the "left-hand side" of the equation:
_____________________________________________
  "x</span>² + 9x −<span> 22"  ;
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What are the factors of "-22"" that add up to "positive 9" ?
_____________________________________________
  Let us list the factors of "-22" :
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-2, 11;  </span>→ -2 + 11 = 9 ;<span>
-11, 2;  </span>→ -11 + 2 = -9 ;<span>
____________________________________________

So we have:  "-2" and "11" ;
____________________________________________
So;   </span>  "x² + 9x − 22" ; factors into " (x−2)(x + 11)" ;
____________________________________________
We have:  (x−2)(x + 11) = 0 ;

So:  x − 2 = 0 ;  

Add "2" to each side of the equation; 

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          x = 2 ; 
___________________________________
   x + 11 = 0 ;

Subtract "11" from each side of the equation;

   x + 11 − 11 = 0 − 11 ;

      x = -11 ; 
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 Answer:  x = 2 ; -11 .
___________________________________
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mafiozo [28]
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