3 years ago

Let f(x) = -6x + 3 and g(x) = 5x + 4. Find and state its domain.

1 answer:

4 0

The domain of a function is the set of "input" or argument values for which the function is defined.The domain is all the values that x is allowed to take on.

The domain of the function f(x) = -6x + 3 are all real numbers.

The domain of a function g(x) = 5x + 4 are also all real number.

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Step 1: Add 9 to both sides
Step 2: Combine like terms (notice the -9 and 9 cancel out)
Step 3: Flip the inequality

-16 > x - 9
-16 + 9 > x - 9 + 9 ... apply step 1
-7 > x ... apply step 2
x < -7 ... apply step 3

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