Help! Can someone explain me

c

Step-by-step explanation:

The formula for y=3x^2+6x+2 is y=ax^2+bx+c. And knowing the purpose of each variable will help you greatly:

a: which way the parabola opens (a<0 is down, a>0 is up)

b: moves the graph up or down

c: the y-intercept

In other graphs (like slope-intercept form, etc.), we know that the y-intercept doesn't change, or is the most constant.

1; 35 is the ratio

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.