Write the vertex form of a quadratic function with a vertex at (4.5) and a point (8,-3)

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

What is the vertex form of f(x) = x2 + 6x + 3

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?