Given f(x) = 2x+5 and g(x) = -2x-2, evaluate: f(-2)
1 answer:
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Answer:
<h2>x = 7</h2>Step-by-step explanation:
To find the value of the value of x when
y = 14 we must first find the relationship between them
The statement
The value of y varies directly with x is written as
where k is the constant of proportionality
when x = 218
y = 436
So we have
436 = 218k
Divide both sides by 218
k = 2
So the formula for the variation is
<h2>y = 2x</h2>when y = 14
We have
14 = 2x
Divide both sides by 2
<h3>x = 7</h3>Hope this helps you.
The vertex of <span>y = 7x2 + 14x + 4</span> is at (-1,-3) (see attachment)
