It’s 7. take the equation given to you y=kx and then take each of the coordinates given and plug them in for x and y (3,21) 21=k(3) then divide the number being multiplied with k and divide it on both sides 7=k. then do that for the rest of them. you get 7 for all three
Answer:
4
Step-by-step explanation:
2x = 8
x = 4
It is indeed 70, you divid 63 by 90 and your answer should be .07 so if you add that to your starting 63 you get 70
y^2 = x isn't a function because there is at least one value of x that produces multiple values of y. In fact, any x value greater than 0 yields two y values. If x = 0, then y = 0 is the only solution. ... Graphically, the equation fails the vertical line test, which is another way to determine that it is not a function.