Graph f(x)=[tex] 2^{x} [/tex]+1 and g(x)=−x+4 on the same coordinate plane.

What is the solution to the equation f(x)=g(x) ?



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x =

Respuesta :

The solution is x=1.
Ver imagen sqdancefan
Answer: x = 1. Graph attached

Explanation.

You can see the graph in the image attached.

To make the graph I recommend that you make a table with integer values of x from - 2 to + 4

x        f(x) = 2^x + 1                              g(x) = - x + 4

-2        2^(-2) + 1 = 1/4 + 1 = 3/4          - (-2) + 4 = 2 + 4 = 6

-1        2^(-1) + 1 = 1/2 + 1 = 3/2           - (-1) + 4 = -1 + 4 = 3

0         2^0 + 1 = 1 + 1 = 2                     0 + 4 = 4
 
1         2^1 + 1 = 2 + 1 = 3                      -1 + 4 = 3

2          2^2 + 1 = 4 + 1 = 5                    -2 + 4 = 2

So, the intersection point on the graph is (1, 3). Which means tha the solution is x = 1.
Ver imagen Edufirst