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Determine the zeros and then, using the sign of the function, draw its sketch.$$f(x)=2 x^{2}+3 x-9$$

$$-3, \frac32$$

Algebra

Chapter 1

Functions and their Applications

Section 7

More on Functions

Functions

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Lectures

01:43

In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x^2. The output of a function f corresponding to an input x is denoted by f(x).

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Determine the zeros and th…

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Find the zeros of the func…

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Find the zeros (if any) of…

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use a graph to find the ze…

to determine the solution of this function. We can factor this function like this and then we can easily see that the first solution is X equals minus three and the second solution is X equals three or two. And I use a programming language pies on to draw the graph of this function. When X is smaller than my nursery, all the X is greater than three over to the function is positive. Well X is between manner three and three over to this function is negative. Enhance This function has two solutions one X equals minus three and one X equals three over to. And also, if you don't know how to factor the function like this, you can use the quadratic formula. I mentioned the quadratic formula in the solution off exercise one please refer to the solution off exercise one for the quadratic formula.

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