Proportion Direct

## Difficult

Q1) If y is proportional to x. If y= 104 and x = 8.
What is the equation linking x to y?
Q1) If y is proportional to x. If y= 20 and x = 5.
What is the value of y when x =6?
Q1) If y is proportional to $x^2$. If y= 12 and x = 2.
What is the value of y when x =3?
Q2) If y is proportional to x. If y= 60 and x = 3.
What is the equation linking x to y?
Q2) If y is proportional to x. If y= 6 and x = 2.
What is the value of y when x =1?
Q2) If y is proportional to $x^2$. If y= 100 and x = 5.
What is the value of y when x =2?
Q3) If y is proportional to x. If y= 28 and x = 2.
What is the equation linking x to y?
Q3) If y is proportional to x. If y= 140 and x = 7.
What is the value of y when x =9?
Q3) If y is proportional to $x^2$. If y= 648 and x = 6.
What is the value of y when x =9?
Q4) If y is proportional to x. If y= 64 and x = 4.
What is the equation linking x to y?
Q4) If y is proportional to x. If y= 72 and x = 4.
What is the value of y when x =7?
Q4) If y is proportional to $x^2$. If y= 612 and x = 6.
What is the value of y when x =4?
Q5) If y is proportional to x. If y= 84 and x = 6.
What is the equation linking x to y?
Q5) If y is proportional to x. If y= 21 and x = 7.
What is the value of y when x =5?
Q5) If y is proportional to $x^3$. If y= 1216 and x = 4.
What is the value of y when x =1?
Q6) If y is proportional to x. If y= 126 and x = 7.
What is the equation linking x to y?
Q6) If y is proportional to x. If y= 90 and x = 9.
What is the value of y when x =8?
Q6) If y is proportional to $x^2$. If y= 648 and x = 9.
What is the value of y when x =7?
Q7) If y is proportional to x. If y= 16 and x = 8.
What is the equation linking x to y?
Q7) If y is proportional to x. If y= 24 and x = 3.
What is the value of y when x =6?
Q7) If y is proportional to $x^2$. If y= 196 and x = 7.
What is the value of y when x =1?
Q8) If y is proportional to x. If y= 108 and x = 9.
What is the equation linking x to y?
Q8) If y is proportional to x. If y= 30 and x = 6.
What is the value of y when x =1?
Q8) If y is proportional to $x^3$. If y= 11664 and x = 9.
What is the value of y when x =2?
Q9) If y is proportional to x. If y= 45 and x = 3.
What is the equation linking x to y?
Q9) If y is proportional to x. If y= 140 and x = 10.
What is the value of y when x =9?
Q9) If y is proportional to $x^2$. If y= 648 and x = 6.
What is the value of y when x =10?
Q10) If y is proportional to x. If y= 80 and x = 10.
What is the equation linking x to y?
Q10) If y is proportional to x. If y= 18 and x = 2.
What is the value of y when x =8?
Q10) If y is proportional to $x^3$. If y= 768 and x = 4.
What is the value of y when x =9?