The x coordinate of the vertex = -b/2a = -(-6) / 2*34 = 0.08824
y coordinate = 34(0.08824^2 - 6(0.08824) + 15 = 14.735
so its (0.088, 14.735) correct to 3 decimal places
<span>The graphs are identical and intersect at infinitely many points
Example of an identity:
x+2=x+2.
same expression on both sides. Reducing it will give 0=0 " identity"
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Example of an equation
x+2=0
Reducing it will give you a solution x=-2. </span>
15 games since the ratio 9/15 is equal to the ratio 3/5
Please note that in proving this, I have used trigonometric identities other than just the sine angle-addition formula.
