Question

Can someone check my answer? i got D.
What i sthe range of the quadratic function F(x)= -5x^2+30x+4
A.) Y<49
B.) Y<3
C.) x>49
D.) Y>49

Answer 1

The answer is A.

Answer 2

are you sure?

Answer 3

Yeah. F(x) is a function that has a maximum value, but no minimum value. Its maximum is 49, So the range is all values less than or equal to 49. Don't forget the less than or"EQUAL".

Answer 4

oaky thanks

Answer 5

anwar knows has just the maximum value since there is a negative in front of the x^2

Answer 6

^^ I don't understand what you mean.

Answer 7

you can tell if a parabola is going to have a maximum if the number in front of x^2 is negative
if number in front of x^2 is positive then is going to have a minimum

Answer 8

Oh yeah, that's why I said it has only a maximum.

Answer 9

right!

Answer 10

And hello :)

Answer 11

hey