Given the function, does the parabola open up or down?

y=x^2-6x+8

The parabola opens up

Step-by-step explanation:

When the x^2 term is positive, the parabola always opens up.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.