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Back to 2.1 The Rectangular Coordinate Systems and Graphs

2.1 Exercise 71

Avg difficulty 2.5

Note: With linear/straight line functions the zero is not really a “guess,” but it is necessary to enter a “guess” so it will search and find the exact x-intercept between your right and left boundaries. With other types of functions (more than one x-intercept), they may be irrational numbers so “guess” is more appropriate to give it the correct limits to find a very close approximation between the left and right boundaries.

Y 1 =−8x+6 \text{Y}_{1} = −8 x + 6

OpenStax Algebra and Trigonometry 2e, 2.1 The Rectangular Coordinate Systems and Graphs, exercise 71

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.