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seraphim [82]
4 years ago
9

Which equation matches the graph shown below?

Mathematics
2 answers:
daser333 [38]4 years ago
8 0
I am pretty sure it is the 3rd one down
stellarik [79]4 years ago
5 0
For this case, what we are going to do is verify in which points the function is equal to zero.
 We have the points are:
 x = (-b +/- root (b ^ 2 -4 * a * c)) / (2 * a)
 We substitute the values in the equations shown and verify that the equality is met.
 For y = 2x2 + 8x - 5
 x1 = -2-root (13/2)
 x2 = root (13/2) - 2
 These roots coincide with the cut points of the graph on the x axis.
 Answer:
 
The equation is:
 
y = 2x2 + 8x - 5
 
option 4
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