Quadratic Equations

NZ Level 6 (NZC) Level 1 (NCEA)

Maximum and minimum values of quadratics

Consider the equation $y=2x^2$`y`=2`x`2.

a

Is every value of $y$`y` positive?

No

A

Yes

B

No

A

Yes

B

b

The graph of $y=2x^2$`y`=2`x`2 is given below.

Loading Graph...

State the axis of symmetry of the parabola.

c

What is the minimum value of $y$`y`?

$y$`y`$=$=$\editable{}$

Easy

Less than a minute

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