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Short Quiz in Math 9 illustrates situations that involve the following variations: (a) direct; (b) inverse; (c) joint; (d) combined

Quiz by Quizalize Premium (Philippines)

Grade 9
Mathematics
Philippines Curriculum: Grades 1-10

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Measures 1 skill from
Grade 9
Mathematics
Philippines Curriculum: Grades 1-10

M9AL-IIa-1

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5 questions
Show answers
  • Q1
    Suppose y varies directly as x, and y=39 when x=3. Find the value of y when x=2.
    26
    3
    58.5
    2
    30s
    M9AL-IIa-1
  • Q2
    Suppose y varies jointly as x & z. If y = -180 when z = 15 and x = -3, then find y when x = 7 and z = -5.
    -140
    -4
    -140
    30s
    M9AL-IIa-1
  • Q3
    Suppose y varies inversely with x. If y = 150 when x = 2, find y when x = 25.
    1,875
    300
    75
    12
    30s
    M9AL-IIa-1
  • Q4
    Suppose p varies directly as r, and p varies inversely as t. t = 20 when p = 4 and r = 2. Find t when r = 10 and p = -5.
    4
    -80
    80
    30s
    M9AL-IIa-1
  • Q5
    Suppose y varies directly as x. If y = 22.5 when x = 15, find y when x = 20.
    1.5
    30
    337.5
    16.875
    30s
    M9AL-IIa-1

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