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Bumek [7]
3 years ago
7

Luke is 5 years younger than 3 times Sydney’s age, s . in this situation , what does 3s represent?

Mathematics
2 answers:
Zielflug [23.3K]3 years ago
8 0

Answer:

3.s is 3 times the age of Sydney's which is equals to Luke age + 5            

Step-by-step explanation:

Given Sydney’s age, s

and also Luke is 5 years younger than 3 times Sydney’s age.

Sydney's 3 times age is 3.s

Luke age = Sydney's 3 times age - 5

Luke age=3.s-5 ⇒ 3.s = Luke age + 5

Hence, 3.s is 3 times the age of Sydney's which is equals to Luke age + 5              

Ad libitum [116K]3 years ago
6 0
3s represents Luke's age, where his age is 3 times that of Sydney's.
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Answer

The vertex is at point (-3, -1)

The axis of symmetry is x = -3

Explanation

We are asked to find the vertex and axis of symmetry of the equation given.

f(x) = x² + 6x + 8

The vertex of a quadratic equation is the point where the graph of the quadratic equation changes from sloping negatively to sloping positively and vice-versa.

The axis of symmetry represents the straight line that divides the graph of the quadratic equation into two mirror parts that are similar to and are mirror images of each other. This axis of symmetry usually passes through the vertex.

To find the vertex, it is usually at the turning point where the first derivative of the quadratic equation is equal to 0.

(df/dx) = 0

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(df/dx) = 2x + 6

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(df/dx) = 2x + 6 = 0

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