How do I rewrite this in vertex form?

Y=2x^2-8x+9

Six cakes cost £2.40 how much do ten cakes cost

Use integers to represent the values in the statement. The hightest elevation in a country is Mt. Snowy with an altitude of 15178 feet. The lowest elevation in the country is Green Valley with an altitude of 237 feet below sea level

D (n) = 3 (-2) ^ n-1 What is the 4 th term in the sequence?

Two similar triangles are congruent always, sometimes, or never?

Trevor ran a hundred meter dash in 10.4 seconds what was his speed be in miles per hour at this rate round your answer to the nearest whole number

Solve by the linear combination method (with or without multiplication) 6x-2y=2 -3x+4y=5

Simplest form of 15/60?

Can the union of two sets have a solution of a null set? why or why not?

How do you solve this equation Half of a number, then reduced by four, gives

A giant pie is created in an attempt to break a world record for baking. The pie is shown below: A circle is shown with a central angle marked 37 degrees and the diameter marked 35 feet.