Quadratic Theory

New Topic: Quadratic Theory

By the end of this topic you will be able to:
• Given the nature of the roots of a quadratic equation, use the discriminant to find an unknown
• Finding the coordinates of the point(s) of intersection of a straight line and a curve or of two curves
• know condition for tangency; intersection of line and parabola (lines and curves)
• solve quadratic inequalities

Homework: Quadratic Theory Set1

Due: Wednesday 2nd September

Please check the solutions below and attempt the equivalent questions from the Set 2 sheet to those you struggled with first time.  These should be handed in with your next homework or earlier. Please see me for help if necessary.

Quadratic Theory Set1 Solutions

Quadratic Theory Set2

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Quadratic Theory

New Topic: Quadratic Theory, MiA Unit 2 Ch1.2

By the end of this topic you will be able to:
• use the quadratic formula to calculate roots
• know that discriminant of ax² + bx + c = 0 is b² – 4ac
• use discriminant to determine nature of roots of a quadratic
• use discriminant to find condition that the roots of a quadratic are real, equal or unequal
• know condition for tangency; intersection of line and parabola (lines and curves)
• solve quadratic inequalities
• determine a quadratic equation given roots

 

Homework: Quadratic Theory Set1

 

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N5 Unit 2 Outcome 1.2 – Practice

Click on image to enlarge.

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