Need help please
State whether each function is in standard form

Answer:
a is in standard form.
c is not in standard form. Standard form would be [tex]y = x^{2} + 11[/tex]
e is in standard form.
b is not in standard form. Standard form would be x - y - 15z = 0
d is not in standard form. Standard form would be [tex]y = -\frac{3}{2} x - \frac{1}{2} * \sqrt{9x^{2} + 16 }[/tex]
f is in standard form.
Step-by-step explanation:
Hope this helps! :D