SOLUTION: Find the missing number . Pretty much is x 1 15 225 and y 4 ? 900 Ratios . Help me

Algebra ->  Radicals -> SOLUTION: Find the missing number . Pretty much is x 1 15 225 and y 4 ? 900 Ratios . Help me       Log On


   

Question 952825: Find the missing number .
Pretty much is x 1 15 225 and y 4 ? 900
Ratios . Help me
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
x| y
1| 4
15| 60
225|900


x%2Fy=1%2F4=15%2Fy=225%2F900
1%2F4=15%2Fy
y=15%2A4
y=60
relationship between x and y is linear, the ratio (slope) is constant:
Solved by pluggable solver: Finding the slope


Slope of the line through the points (1, 4) and (15, 60)



m+=+%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29


m+=+%2860+-+4%29%2F%2815+-+1%29


m+=+%2856%29%2F%2814%29


m+=+4



Answer: Slope is m+=+4


and linear equation is:
y=4x