OCR MEI C1 2012 January — Question 8

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
Year2012
SessionJanuary
TopicQuadratic Functions

8 Express \(5 x ^ { 2 } + 15 x + 12\) in the form \(a ( x + b ) ^ { 2 } + c\).
Hence state the minimum value of \(y\) on the curve \(y = 5 x ^ { 2 } + 15 x + 12\).