Using the correct number of significant figures?

For seven it would be 93.1, 3 sig figs and same for ten. It would be 2.78*10^3

Ifound this on google “that means that the graph of a function with direct variation has these features: it is a straight line: because the slope is the ratio y/x = k. it passes through the origin (0,0): because y = kx = k (0) = 0.” i hope this you for what your looking for

First subtract 10 from both side
y^2+6y-16=0
(y+8)(y-2)=0
-8 and 2