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put this solution on YOUR website!Find the x-intercepts(if they exits) of the following quadratic functions. Graph the function and mark the intercepts.
f(x) = x^2 - 6
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Understand that in the graphing world y = f(x), so we have:
y = x^2 - 6
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Understand that the x intercept occurs when y = 0, substitute 0 for y:
Solve:
x^2 - 6 = 0
x^2 = +6; added 6 to both sides
x = +
and
x = -
:
These are x intercepts, approx +2.4494897 and -2.4494897
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A graph of this would look like this
:
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You can see the x intercepts corresponds to the values we found
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Did this make sense to you now?
