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tmua.fyi Paper 1 Challenge 2 · Q20

Paper 1Logic & proofFunctions & graphs

The diagram shows the graph of y=ax2+bx+cy=ax^2+bx+c. Diagram for question 20 Which of the following is true?

Aa>0, b>0, c>0a>0,\ b>0,\ c>0
Ba>0, b>0, c<0a>0,\ b>0,\ c<0
Ca>0, b<0, c>0a>0,\ b<0,\ c>0
Da>0, b<0, c<0a>0,\ b<0,\ c<0
Ea<0, b<0, c>0a<0,\ b<0,\ c>0
Fa<0, b<0, c<0a<0,\ b<0,\ c<0
Ga<0, b>0, c>0a<0,\ b>0,\ c>0
Ha<0, b>0, c<0a<0,\ b>0,\ c<0

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