What is the domain for y= -4x^2+7x+11?

All real numbers or (negative infinity, positive infinity)

Step-by-step explanation:

The equation given is a parabola. A parabola has infinite values of x inputs that produce an infinite amount of y outputs. All values of x produce an output, so any number of x would work.

Step-by-step explanation:

(-∞,+∞), since any quadratic equation graph (quadratic parabola) has only range restrictions (the min and max), but the for any x value there is a y value.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

hello, sorry being so rude after all that fighting i found it kind of funny, so as me saying sorry here is an answer!

since the table showed her that   2km = 2000m.

to determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

similarly, for 8000m = 8000 / 1000 = 8 km

cheers to savings

~

your pal papaguy