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McGraw Hill Glencoe Algebra 1, 2012

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McGraw Hill Glencoe Algebra 1, 2012 View details

7. Inverse Linear Functions

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Exercise 10 Page 267

Exchange the x- and y-coordinates in each ordered pair.

{ (- 36.4,- 8), (- 15.4,- 2), (- 4.9,1), (9.1,5), (30.1,11)}

Practice makes perfect

We can interpret the given table as a set of ordered pairs.

x	y	Ordered Pair
-8	-36.4	(-8,-36.4)
-2	-15.4	(-2,-15.4)
1	-4.9	(1,-4.9)
5	9.1	(5,9.1)
11	30.1	(11,30.1)

To find the inverse of a relation written as coordinate pairs, we exchange the x- and y-coordinates of each ordered pair.

Given Point	Inverse Point
( -8, -36.4)	( -36.4, -8)
( -2, -15.4)	( -15.4, -2)
( 1, -4.9)	( -4.9, 1)
( 5, 9.1)	( 9.1, 5)
( 11, 30.1)	( 30.1, 11)

Let's write the inverse relation as a data set. { (-36.4,-8), (-15.4,-2), (-4.9,1), (9.1,5), (30.1,11)}

Subchapter links

Check Your Understanding p.267

Practice and Problem Solving p.267-269

H.O.T. Problems p.269

Standardized Test Practice p.270

Spiral Review p.270

Skills Review p.270