Part of this question was typeset outside the text flow — a fraction, subscript or similar — and PDF extraction re-inserted it in the wrong place. The wording is reliable; the symbols may be out of order. Check the original PDF →
f(x) = x−2 The function f is defined by (- 1)/10. What = is the y-intercept of the graph of y f(x) in the xy-plane? (−2,0)
Correct answer: B (parsed from the explanation — this source omits an answer key for this item)
Explanation
Choice B is correct. The y-intercept of the graph of a function in the xy-plane is = = 1 -2 the point on the graph whe 0 re = x 1 0 0 . It - ′s 2 given 0 tha = t - f 2 ^xh 10x . Substituting = 0 for x in this equation yields f^ h 10^ h , or f^ h . Since it′s given that y f^xh, it =- = = follows that y 2 when x 0. Therefore, the y-intercept of the graph of y f^xh in 0,-2 the xy-plane is ^ h. 42 SAT PRACTICE TEST #8 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 2 Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.
Loading…
Searched on YouTube by topic, not by question text. Open this search on YouTube →
Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.