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Algebra, STD1 A3 2021 HSC 29

In a park the only animals are goannas and emus. Let be the number of goannas and let be the number of emus.

The number of goannas plus the number of emus in the park is 31. Hence  .

Each goanna has four legs and each emu has two legs. In total the emus and goannas have 76 legs.

By writing another relevant equation and graphing both equations on the grid on the following page, find the number of goannas and the number of emus in the park.  (4 marks)

 

   
 

Number of goannas = _______________

Number of emus = _________________

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♦♦♦ Mean mark 8%.

 
 
 

 

Algebra, STD2 A4 SM-Bank 7 MC

A computer application was used to draw the graphs of the equations

  and 

Part of the screen is shown.
 

Which row of the table correctly matches the equations with the lines drawn and identifies the solution when the equations are solved simultaneously?

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Algebra, STD2 A4 SM-Bank 6 MC

A computer application was used to draw the graphs of the equations

  and 

Part of the screen is shown.

What is the solution when the equations are solved simultaneously?

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Algebra, STD2 A4 2017 HSC 17 MC

The graph of the line with equation    is shown.
 


 

When the graph of the line with equation    is also drawn on this number plane, what will be the point of intersection of the two lines?

A.     

B.     

C.     

D.     

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