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Kisachek [45]
3 years ago
7

If f(x)= 6x+7, determine the value of f(-5)

Mathematics
2 answers:
Charra [1.4K]3 years ago
6 0
X = -5
so f(-5) = 6(-5)+7
f(-5) = -30 +7
f(-5)= -23
Juliette [100K]3 years ago
5 0
You would substitute or plug in -5 wherever there is an x in the equation.

f(-5) = 6(-5) + 7
f(-5)= -30 + 7
f(-5) = -23
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The given sinusoidal equation is y = 2 \cdot sin \left(\dfrac{\pi}{2} \cdot x + 3 \right)

The general form of the sin function is presented as follows;

y = A·sin(B·(x - C)) + D

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By comparison with the given sine function, we have;

The amplitude, A = 2

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The vertical shift, D = 0

Given that the mid line of the parent function, sin(x), is the line y = 0, and that the vertical shift is 0, the midline of the function, y = 2 \cdot sin \left(\dfrac{\pi}{2} \cdot x + 3 \right), is therefore, the line;

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