Variations

Question 1

if the value of x increases, the value of y also increases and vice versa

Answer 1

direct variation

Question 2

formula of direct variation

Answer 2

y=kx

Question 3

how to get k (constant) in direct variation?

Answer 3

divide the given value of y to the given value of x to cancel out

Question 4

y varies directly as the square of x

Answer 4

direct square variation

Question 5

formula for direct square variation

Answer 5

y=kx^2

Question 6

how to find k in direct square variation

Answer 6

divide given value y to the square of given value x to cancel out

Question 7

if the value of x increases, the value of y decreases and vice versa

Answer 7

inverse variation

Question 8

formula for inverse variation

Answer 8

y=k/x

Question 9

how to find k in inverse variation

Answer 9

multiply y and x (cross multiplication of y/1 and k/x)

Question 10

the value of x varies inversely as the square of y

Answer 10

inverse square variation

Question 11

formula for inverse square variation

Answer 11

y=k/x^2

Question 12

how to find k in inverse square variation

Answer 12

multiple the square of x to y

Question 13

y varies directly as x and z

Answer 13

joint variation

Question 14

formula of joint variation

Answer 14

y=kxz

Question 15

how to find k in joint variation

Answer 15

multiply x and z then divide the product to y

Question 16

y varies directly as x and inversely as z

Answer 16

combined variation

Question 17

formula of combined variation

Answer 17

y=kx/z

Question 18

how to find k in combined variation

Answer 18

cross multiply then divide to cancel

Question 19

phone charging length to phone battery percentage (example of…)

Answer 19

direct variation

Question 20

the more that you say the less i know (example of…)

Answer 20

inverse variation