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Course: Algebra (all content) > Unit 5

Lesson 8: Solving equations by graphing (Algebra 2 level)
Math
Algebra (all content)
System of equations
Solving equations by graphing (Algebra 2 level)
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Solve equations graphically

Google Classroom

Problem

Let f(x)=2xx−1 and let g(x)=−4x−2.
The graph of y=f(x) is shown below.
Use the interactive graph to sketch a graph of y=g(x).
Let x1 and x2 be solutions of 2xx−1=−4x−2, where x1>x2.
Estimate the value of x1.
Answers within 0.5 units of the solution will be accepted.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi