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Direct Variation
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Terms in this set (19)
YES
Is this a direct variation? YES or NO
NO
Is this proportional? YES or NO
k = 1.5
What is the constant of proportionality? (type k = ___)
y = 0.20x
What is the equation for this direct variation?
If y = 27 when x = 6, write the direct variation equation and find x when y = 45.
y = 4.5x; x = 10
If y = -7 when x = -14, write the direct variation equation and find y when x = 20.
y = 0.5x; y = 10
If x = -7 when y = -14, write the direct variation equation and find y when x = 20.
y = 2x; y = 40
If y = 8 when x = 4, write the direct variation equation and find y when x = 5.
y = 2x; y = 10
If x = 8 when y = 4, write the direct variation equation and find y when x = 5.
y = 0.5x; y = 2.5
If y = 36 when x = 6, write the direct variation equation and find x when y = 42.
y = 6x; x = 7
If x = 36 when y = 6, write the direct variation equation and find x when y = 42.
y = 1/6x; x = 252
If y = -16 when x = 4, write the direct variation equation and find x when y = 20.
y = -4x; x = -5
If x = -16 when y = 4, write the direct variation equation and find x when y = 20.
y = -1/4x; x = -80
If y = -18 when x = 6, write the direct variation equation and find y when x = 6.
y = -3x; y = -18
If x = -18 when y = 6, write the direct variation equation and find y when x = 6.
y = -1/3x; y = -2
If y = 4 when x = 12, write the direct variation equation and find y when x = -24.
y = 1/3x; y = -8
If x = 4 when y = 12, write the direct variation equation and find y when x = -24.
y = 3x; y = -72
If y = 2.5 when x = 0.5, write the direct variation equation and find y when x = 20.
y = 5x; y = 100
If x = 2.5 when y = 0.5, write the direct variation equation and find y when x = 20.
y = 1/5x; y = 4
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