3 years ago

Whats the recursive and explicit formula for 2,6,18,54

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

3 0

You keep multiplying by 3. The recursion has nothing to do with 2. Thus, it is a_n=3*a_{n-1}

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Answer:

$y-4=2\,(x+1)$

which agrees with answer C in your list of possible answers.

Step-by-step explanation:

We can use the general point-slope form of a line of slope m and going through the point $(x_0, y_0)$ :

$y-y_0=m(x-x_0)$

which in our case, given the info on the slope (2) and the point (-1, 4) becomes:

$y-y_0=m\,(x-x_0)\\y-4=2\,(x-(-1))\\y-4=2\,(x+1)$

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Answer:

Step-by-step explanation:

Isolate by the x from one side of the equation.

First, you have to subtract by 3x from both sides.

$\sf{4x-3x=3x+5-3x}$

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$\large\boxed{x=5}$

Therefore, the solution is x=5.

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