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NemiM [27]
3 years ago
15

Which equation could be solved using the graph above?

Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

Option b is the correct answer

Step-by-step explanation:

The graph in the picture is the graph of a quadratic equation and it takes the shape of a parabola.

The points on the x axis through which the parabola cuts across is used to determine the solution of the quadratic equation.

Looking at the parabola formed from the plotted points, it cuts the x axis at

x = -1 and x= -2

These are the factors of the equation. To get the equation, we multiply the factors.

x= -1, x +1 = 0

x =-2 , x + 2= 0

The equation is (x+1)(x+2)

Expanding the brackets,

x×x + x×2 +1×x + 1×2

= x^2 + 2x + x +2

= x^2 + 3x +2 = 0

Option b is the correct answer

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3 years ago
If F(x) = 3x + 10x and g(x) = 5x - 3, find (f+g)(x)
Ugo [173]
(f+g)(x) represents the sum of the two functions f(x) and g(x).

Arrange these functions vertically and add up like terms:

<span>   f(x) = 3x + 10
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Please note:  You've typed in "</span><span>F(x) = 3x + 10x and g(x) = 5x - 3."
I doubt that F(x) actually equals 3x + 10x.  Please ensure that you have copied down the original problem correctly.  Come back once you've done that, so that we can finish this problem solution.</span>
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