Find the sum and product of the roots.
2x^2 + 6x - 8 = 0

A. sum = -7, product = 12
B. sum = -1/3 , product = -1/4
C. sum = -3, product = -4
D. sum = -1/3, product = -3/4

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Ratio of circumference to diameter example plz i need to now what it looks like.