Direct Variation, Inverse Variation, And Joint Variation Question Preview (ID: 29613)


All About Relationship Between Two Or More Variables. TEACHERS: click here for quick copy question ID numbers.

z varies jointly with x and y. When x = -1/4 and y = -3, z = 15. Find z when x = -4 and y = 5.
a) z = -400
b) z = 400
c) z = 200
d) z = -200

z varies jointly with x and y. When x = 8 and y = 6, z = 12. Find z when x = -4 and y = 5.
a) z = -5
b) z = 5
c) z = 1/5
d) z = -1/5

z varies jointly with x and y. When x = 2 and y = -6, z = 24. Find z when x = -4 and y = 5.
a) z = 40
b) z = -40
c) z = 20
d) z = -20

y varies inversely with x. If y = -7 when x = 5/3, find y when x = 3.
a) y = -35/9
b) y = 35/9
c) y = 9/35
d) y = -9/35

y varies inversely with x. If y = -5/4 when x = -4, find y when x = 3.
a) y = 5/3
b) y = -5/3
c) y = 15/16
d) y = -15/16

y varies inversely with x. If y = -1/6 when x = -12, find y when x = 3.
a) y = 2/3
b) y = -2/3
c) y = 3/2
d) y = -3/2

y varies inversely with x. If y = 2 when x = 7, find y when x = 3.
a) y = 14/3
b) y = -14/3
c) y = 63
d) y = -63

y varies inversely with x. If y = 28 when x = 3/4, find y when x = 3.
a) y = 7
b) y = -7
c) y = 3
d) y = -3

y varies inversely with x. If y = 8 when x = -3, find y when x = 3.
a) y = -8
b) y = 8
c) y = 72
d) y = -72

y varies inversely with x. If y = 9 when x = 1, find y when x = 3.
a) y = 3
b) y = -3
c) y = 27
d) y = -27

y varies inversely with x. If y = -4 when x = 5, find y when x = 3.
a) -20/3
b) 20/3
c) -12/5
d) 12/5

Tell whether x and y show direct variation, inverse variation, or neither: 8y = x
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: xy = 12
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: y/x = 8
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: x + y = 6
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: y = x + 4
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: 4x = y
a) direct variation
b) inverse variation
c) neither
d)

z varies jointly with x and y. When x = 6 and y = -7, z = -3. Find z when x = -4 and y = 5.
a) z = -10/7
b) z = 10/7
c) z = 7/10
d) z = -7/10

Tell whether x and y show direct variation, inverse variation, or neither: y = 2/x
a) direct variation
b) inverse variation
c) neither
d)

Tell whether x and y show direct variation, inverse variation, or neither: xy = 1/5
a) direct variation
b) inverse variation
c) neither
d)

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