5. Write an equation in y = mx + b form for the table.
Books Bought 1 3 5 7
Total Amount Spent $ 21 39 57 75

(Points : 1)
y = 3x + 21
y = 9x + 12
y = 5x + 21
y = 7x + 12

6. Predit the total cost if you bought 20 books.
Books Bought 1 3 5 7
Total Amount Spent $ 21 39 57 75

(Points : 1)
$192
$420
$200
$310

Question

5. Write an equation in y = mx + b form for the table.
Books Bought 1 3 5 7 
Total Amount Spent $ 21 39 57 75 


(Points : 1)  
       y = 3x + 21
       y = 9x + 12
       y = 5x + 21
       y = 7x + 12
  
    
6. Predit the total cost if you bought 20 books.
Books Bought 1 3 5 7 
Total Amount Spent $ 21 39 57 75 


(Points : 1)  
       $192
       $420
       $200
       $310

anonymous · Answer

y = 9x + 12

 $192

anonymous · Answer

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