Ishatalanidn
Answered

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1. What is the value of k "if y varies directly as x", when y = 12 and x = -3?
a. 4 b.-4 c. 36 d. - 36

2. "Ify varies directly as x", what is y when x = 2 and k = 5?
a. 10
b. - 10
c.5
d. - 5

3. "If y varies directly as x", and y=-6 when x = 2, what is y when x = 1?
a. 4
b. - 4
c. 3
d.-3

4. Which of the following is the value of k "if y varies directly as x”, when y = 10 and x = -2?
a. 5
b.-5
C. 2
d.-2

5. What is the equation of variation “If the number of kilos of fish f varies directly as its cost c"?
[tex]a. \\ c = kf[/tex]
[tex]b. \\ f = kc[/tex]
[tex]c. \\ c = \frac{k}{f} [/tex]
[tex]d. \\ f = \frac{k}{c} [/tex]



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Sagot :

MissJindySummeridn

[tex]\color{lime}\underline\mathbb{QUESTION:}[/tex]

1. What is the value of k "if y varies directly as x", when y = 12 and x = -3?

  • a. 4
  • b.-4
  • c. 36
  • d. - 36

------------------------------------

  • y = kx
  • 12 = k · -3
  • 12/-3 = k
  • -4 = k

------------------------------------

=====================================

2. "Ify varies directly as x", what is y when x = 2 and k = 5?

  • a. 10
  • b. - 10
  • c.5
  • d. - 5

------------------------------------

  • y = 5x
  • y = 5 · 2
  • y = 10

------------------------------------

=====================================

3. "If y varies directly as x", and y=-6 when x = 2, what is y when x = 1?

  • a. 4
  • b. - 4
  • c. 3
  • d.-3

-------------------------------------

  • y = kx
  • -6 = k · -2
  • -6/-2 = k
  • 3 = k

-------------------------------------

======================================

4. Which of the following is the value of k "if y varies directly as x”, when y = 10 and x = -2?

  • a. 5
  • b.-5
  • C. 2
  • d.-2

--------------------------------------

  • y = kx
  • 10 = k · -2
  • 10/-2 = k
  • -5 = k

--------------------------------------

======================================

5. What is the equation of variation “If the number of kilos of fish f varies directly as its cost c"?

  • a. c = kf
  • b. f = kc
  • c. = c = k/f
  • d. f = k/c

======================================

[tex]\color{yellow}\underline\mathbb{ANSWER:}[/tex]

  • 1. b. -4
  • 2. a. 10
  • 3. c. 3
  • 4. b. -5
  • 5. b. f = kc

[tex]\\[/tex]

[tex]\color{aqua}\sf{\#J}[/tex]