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1 of 8 0-day streak

Determine a quadratic rule from exact information

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Turning point and another point 1Turning point and another point 2Turning point and another point 3Turning point and another point 4Intercepts and another point 5Intercepts and another point 6Intercepts and another point 7Intercepts and another point 8NOWMix of allRecommended
Question 1 of 8

No calculator

The x-intercepts are \((-1,0)\) and \((3,0)\)

The graph also passes through \(P=(1,-2)\)

Use exact values. Enter the parameters to construct the rule

(a)3 marks

Complete the parameters in this form

\[y=a(x-r_1)(x-r_2)\]
(b)1 mark

Use your rule to find y when \(x=-2\)