3 years ago

If a + b = 28 and a - b = 10, then b =?

Mathematics

1 answer:

Ket [755]3 years ago

5 0

Answer:

b=9

Step-by-step explanation:

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Answer:

$g(x) = \frac{6}{5}x + 8$

Step-by-step explanation:

Given

$f(x) = 6x + 8$

$k = 5$ --- horizontal stretch factor

Required

Find g(x)

When a function is stretched horizontally by k, the resulting function will be:

Rule: $g(x) = f(\frac{1}{k}x)$

So, we have:

$g(x) = f(\frac{1}{5}x)$

Solve for: $f(\frac{1}{5}x)$

$f(\frac{1}{5}x) = 6 * \frac{1}{5}x + 8$

$f(\frac{1}{5}x) = \frac{6}{5}x + 8$

Recall that:

$g(x) = f(\frac{1}{5}x)$

$g(x) = \frac{6}{5}x + 8$

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