SOLUTION: I am having a very hard time trying to figure this out. Can you please help me? I am sorry, I forgot to put in there what it is I need to do with the problem. Find the axis of

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: I am having a very hard time trying to figure this out. Can you please help me? I am sorry, I forgot to put in there what it is I need to do with the problem. Find the axis of       Log On


   

Question 123394: I am having a very hard time trying to figure this out. Can you please help me?
I am sorry, I forgot to put in there what it is I need to do with the problem.
Find the axis of symmetry.
y = x squared - 5x + 3
Found 2 solutions by checkley71, jim_thompson5910:
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
Y=X^2-5X+3
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+y+=+x%5E2-5x+%2B3%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, y = x^2-5x +3).
IT LOOKS LIKE X=2.5 IS THE AXIS OF SYMMETRY.

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
To find the axis of symmetry, we can use this formula

x=-b%2F2a where "b" is the x coeffficient and "a" is the x%5E2 coefficient


So by looking at x%5E2-+5x+%2B+3 we can see that a=1 and b=-5

x=-b%2F2a Start with the given formula


x=-%28-5%29%2F2%281%29 Plug in a=1 and b=-5


x=5%2F2%281%29 Negate -5 to get 5


x=5%2F2 Multiply


So the axis of symmetry is x=5%2F2 which is x=2.5 in decimal form