Linear functions SAT question

Math · Algebra · Easy · Answer it here, explanation included.

The function g is defined by $g of x, equals, negative x, plus 8$ . What is the value of $g of 0$ ?

ExplanationShow

Choice D is correct. The value of $g of 0$ is found by substituting 0 for x in the function g. This yields $g of 0 equals, negative 0, plus 8$ , which can be rewritten as $g of 0 equals 8$ .

Choice A is incorrect and may result from misinterpreting the equation as $g of x equals, x plus, negative 8$ instead of $g of x equals, negative x plus, negative 8$ . Choice B is incorrect. This is the value of x, not $g of x$ . Choice C is incorrect and may result from calculation errors.

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