1. Without graphing find the vertex and axis of symmetry. Indicate if the vertex is a
max or minimum.
y= -2x2+8x-3

the vertex is at (2, 5) and the axis of symmetry is x = 2

Step-by-step explanation:

A word to the wise:  Please use " ^ " to indicate exponentiation.  And so we have:

y= -2x^2+8x-3

The x-coordinate of the vertex and the equation of the axis of symmetry is determined by the equation

        b                                          -8

x =   which here is   x = = 2

        2a                                     2(-2)

Then the y-coordinate of the vertex is f(2) = -2(-2)^2 + 8(2) - 3 = 8 - 3  = 5

and so the vertex is at (2, 5) and the axis of symmetry is x = 2

there is no question content here, but you for the free points! : d

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this