SOLUTION: How do I plot the graph of {{{ y=-o.5x^2 }}}? I remember the slope-intercept formula, but don't know what to do when x has an exponent. Thank you, in advance.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: How do I plot the graph of {{{ y=-o.5x^2 }}}? I remember the slope-intercept formula, but don't know what to do when x has an exponent. Thank you, in advance.      Log On


   



Question 223651: How do I plot the graph of
+y=-o.5x%5E2+? I remember the slope-intercept formula, but don't know what to do when x has an exponent. Thank you, in advance.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do I plot the graph of
+y=-o.5x%5E2+? I remember the slope-intercept formula, but don't know what to do when x has an exponent.
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y = (-1/2)x^2
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Plot points and draw a smooth curve thru them:
Let x = -2, then y = (-1/2)(-2)^2 = -2
Let x = -1 , then y = (-1/2)(-1)^2 = -1/2
Let x = 0 , then y = (-1/2)(0)^2 = 0
Let x = 1 , then y = (-1/2)(1)^2 = -1/2
Let x = 2 , then y = (-1/2)(2)^2 = -2
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So you have points (-2,-2)(-1,-1/2)(0,0)(1,-1/2)(2,-2)
graph%28400%2C200%2C-10%2C10%2C-10%2C10%2C-%281%2F2%29x%5E2%29
==========================================
Cheers,
Stan H.