Question

f(x)= -2x^2-x+3
what is the minimum or maximum value for this equation ...please show work

Answer 1

min or max occurs when the slope of the tangent line at that point = 0

Answer 2

and you can find where the slope of the tangent line = 0 by taking the derivative of this function and it will give you an equation describing the tangent line slope of this function for every x value

Answer 3

i dont think if i need slope because the question says

" is the vertex minimum or maximum?" and "find the value" i know it's maximum i just need to know how to find that value ..thanks