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Igoryamba
3 years ago
11

Solve by graphing. x2 + 2x – 3 = 0

Mathematics
2 answers:
Andrei [34K]3 years ago
4 0
The graph is attached 

tigry1 [53]3 years ago
3 0

The graph of an equation is the set of all  points that are solutions of the equation. Frequently, a relationship between two quantities can be expressed as an equation  in two variables. For instance, we can write the equation of our problem as the following form:


y=x^2+2x-3 \\ \\ Or: \\ \\ f(x)=x^2+2x-3


So, by graphing f(x) we want to know the x-intercepts. This graph is illustrated in the Figure below. As you can see, points in red are the solution to this problem that are the x-intercepts of our previously defined function f(x). These points are:


(-3,0) \ and \ (1,0)

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