Question in-the
In the linear function , and . Which equation defines ?
In the linear function h , h ( 0 ) = 41 and h ( 1
Medium-difficulty · SAT Math · Linear Equations in Two Variables — Writing equations from data/points. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice A is correct. An equation defining a linear function can be written in the form , where and are constants. It’s given that . Substituting for and for in the equation yields , or . Substituting for in the equation yields . It’s also given that . Substituting for and for in the equation yields , or . Subtracting from the left- and right-hand sides of this equation yields . Substituting for in the equation yields , or .
Choice B is incorrect. Substituting for and for in this equation yields , which isn't a true statement.
Choice C is incorrect. Substituting for and for in this equation yields , or , which isn't a true statement.
Choice D is incorrect. Substituting for in this equation yields , which isn't a true statement.
More Linear Equations in Two Variables practice questions
- A line in the xy -plane has a slope of - 1 2 and
- The graph of y = f x - 11 is shown. The line slants
- f ( x ) = 4 x + b For the linear function f
- On a 210-mile trip, Cameron drove at an average speed of 60 miles per
- y = 576 2 x + 2 The graph of the given equation in
- Hiro and Sofia purchased shirts and pants from a store. The price of each
- The table gives the number of hours, h , of labor and a plumbers
- The line slants sharply up from left to right. The line passes through the
Browse all Heart of Algebra practice questions or return to the full SAT question bank.
