Solve 5x^2=10

find the x-intercepts of f(x)=5x^2-10?

Solve 5x^2=10

find the x-intercepts of f(x)=5x^2-10?

find the x-intercepts of f(x)=5x^2-10?

- stapel_eliz
**Posts:**1731**Joined:**Mon Dec 08, 2008 4:22 pm-
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think wrote:Solve 5x^2=10

Divide through by the 5. Then take the square root of either side, and simplify.

think wrote:find the x-intercepts of f(x)=5x^2-10?

Plug "zero" in for "y" (that is, for f(x)), and solve the resulting quadratic equation.

Note: I think the "point" of this exercise is that you notice the connection between the zeroes of a function f(x) and the solution of the related equation f(x) = 0, since "f(x) = 5x