Answer:
k = -2
Step-by-step explanation:
x -1 0 2 5
f(x) 2 0 -4 -10
ƒ(x) = kx
Substitute a pair of values for x and ƒ(x)
-10 = k×5
Divide each side by 5
k = -2
The constant of variation k = -2.
Answer:if you looked at hem like they were rows, in the first row the third one would be an expression. In the second row, the second one would be an expression. This is becuase they both have an equal sign.
Answer:
that looks hard im sorry cant do that
Step-by-step explanation:
Moving the decimal point one place is a factor of ten; two places is a factor of 100
So 100.
NB; three places would be 1000
So 90 is 4/5 of a number.
4/5n=90
4n=450
n=450/4
n=112.5
