In the xy-plane, the graph of y = x2 + bx + c, where b and c are constants, has x-intercepts at x = -2 and
x = -6. What is the value of b?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?