Question the-fu
1.1 Linear Functions - Graphs in slope-intercept, point-slope, standard form
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The function is defined by the equation . What is the value of when ?
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The function f is defined by the equation f x = 7 x + 2 .
Medium-difficulty · SAT Math · Linear Functions — Graphs in slope-intercept, point-slope, standard form. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
The correct answer is . The value of when can be found by substituting for in the given equation . This yields , or . Therefore, when , the value of is .
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