Evaluate the function rule for the given value. y = 15 × 3x for x = -3

Solution:

The given function is

y = 15 × 3x

We have to find the function for x = -3

Substituting the value of x in the given function

y = 15 × 3(-3)

y = 15 × (-9)

y = -135

Therefore, the function rule is y = -135.

Example:

Evaluate the function rule for the given value. y = 25 × 5x for x = -2

Solution:

The given function is

y = 25 × 5x

We have to find the function for x = -2

Substituting the value of x in the given function

y = 25 × 5(-2)

y = 25 × (-10)

y = -250

Therefore, the function rule is y = -250.

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Evaluate the function rule for the given value. y = 15 × 3x for x = -3

Summary:

The function rule y = 15 × 3x for the given value x = -3 is y = -135.