9+(7.5รท1.5)=5
y=2x-11
1/2x + 65*9
f(x) = {x+3, if x<10} {x+2, if x>10} {x+4, if x=10} if f=9 make a graph
1+1.6s+0.65s^2+0.05s^3=0
y=
1+1,6s+0,65s^2+0,05s^3=0
1/2*2+2
$x^{4}$- $y^{16}$/x $y^{2}$
\frac{2x}{625}+\frac{2y}{49}=1