Use the parabola tool to graph the quadratic function.
f(x)=2x²+12x+16

Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Rewrite the following without an exponent. (5/8)-1

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).