The line that has a slope of -2/3 is line c
Please write this equation as <span>f(x) = −18 + x^2 − 3x
Rewrite it in descending order by powers of x: f(x) = x^2 - 3x - 18
Since the coefficient of the x^2 term is +, the graph opens UP.</span>
Pi is seldom useful as an exponent, and is hardly ever used as one.
If you need to show somebody an example of an exponent, I think
that pi is one of the worst examples you can choose.
