Y=2x^2+3x+1 solve the system by graphing

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

Vertex: (−3/4,−1/8)

Focus: (−3/4,0)

Axis of Symmetry: x=−3/4

Directrix: y=−1/4

x        y

−3        10

−2         3

−3/4   −1/8

 0        1

 1         6

Step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

first 15 divide by 2 = 7.5

100 divided by 7.5 is 13.

15 / 2 = 7.5

100 / 7.5 = 13.