Y= -2x²-3x+2, (form y = ax² +b .x + c
The parabola opens downward & hence it's Vertex is a MAXIMUM.
We know that the axis of symmetry is -b/2a ==>3/(-4) ==>
x= - 3/4 (axis of symmetry. At x=-3/4 , y = 25/8 = 3.125
Hence the axis of symmetry is x= - 3/4 & the vertex is at (-3/4, 25/8)
Https://dlsfile.com/dd/MTQ1ODE5dnJpZ3doanhobV8zNDEzMjU
Answer: I think it would costs $34.50 for 7.5 lbs of walnut
Step-by-step explanation: <u><em>I HOPE THIS HELPS :)</em></u>
Answer: x=4
Steps: (I am assuming your question has a typo in it and by "c" you meant "x")
The rational expression equals zero

only when the numerator equals 0 (the denominator cannot ever be zero):

and that happens only for x=4
Attach an image of the two triangles on a cartesian plane