Helpppp meeeeee plssssss

Second

Step-by-step explanation:

1 gallon = 23 miles

2 gallons = 46 miles

3 gallons = 69 miles

23 miles 3 gallons 69

x =

1 gallon 1 1

You can factor it by considering factors of 8 that add to 6.
  8 = 1·8 = 2·4
The latter pair add to 6, so your factorization is
  f(x) = (x + 2)(x + 4)
This product is zero when one of the factors is zero. There are 2 factors, hence 2 zeros of the function.
For x+2 = 0
  x = -2
For x+4 = 0
  x = -4

The graph of a parabola is symmetrical about its vertex, so the line of symmetry is halfway between the zeros, at x = (-2-4)/2 = -3. The y-coordinate of the vertex is the value of the function at this point,
  f(-3) = (-3+2)(-3+4) = -1

a) Your two separate zeros are
  x = -4 (smaller value)
  x = -2 (larger value)

b) The vertex of the parabola is
  vertex = (-3, -1)

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You can use a graphing calculator to answer these questions directly from the graph (or to check your work, as the case may be).