3. If x and y vary directly and y=16 when x = 12, then which of the following equations correctly represents the relationship between x and y? (1) y=-x (2) y+x=28 (3) xy = 192 4 (4) y = x

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.9: Use Direct And Inverse Variation
Problem 8.172TI: If y varies directly as x and y=12 when x=4 find the equation that relates x and y.
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3. If x and y vary directly and y=16 when x = 12, then which of the following equations correctly represents
the relationship between x and y?
(1) y=-x
(2) y+x=28
(3) xy = 192
4
(4) y = ²x
Transcribed Image Text:3. If x and y vary directly and y=16 when x = 12, then which of the following equations correctly represents the relationship between x and y? (1) y=-x (2) y+x=28 (3) xy = 192 4 (4) y = ²x
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