If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Get ready for AP® Calculus

Course: Get ready for AP® Calculus > Unit 7

Lesson 6: Solving equations by graphing
Math
Get ready for AP® Calculus
Get ready for applications of integration
Solving equations by graphing
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Solving equations graphically: intro

Google Classroom

Problem

This is the graph of y, equals, 6, vertical bar, x, plus, 4, vertical bar, minus, 4.
An absolute value function graph on an x y coordinate plane. The x- and y- axes scale by one. The graph has a vertex at (negative four, negative four). It decreasing from the interval of negative infinity to negative four passing through the point (negative five, two) and increases from the interval negative four to infinity passing through the point (negative three, two).
Given that x, approximately equals, minus, 5 is an approximate solution to 6, vertical bar, x, plus, 4, vertical bar, minus, 4, equals, 3, use the graph to find another approximate solution.
Round your answer to the nearest integer.
x, approximately equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
Stuck?
Stuck?