Finding max/min of quadratic and effect of a, b on absolute value graph

[Chikawakajones]

2 Problems.!

#1 Tell Whether The Quadratic Has A Maximum Value Or A Minimum Value. The Find The Value. Round To The Nearest Tenth.

F(x)= -x² -6x - 7


#2 Let y = | x+a | +b, Where a ‡ 0 and b ‡ 0 . Explain how the values of a and b affect the graph of the functions as compared to the graph of y= |x|.



I NEED HELP FAST HURRY! THANK YOU!

 

[Tide]

QUICK! Tell us what you did so far so we can HELP YOU! :-)

 

[fourier jr]

#1 Tell Whether The Quadratic Has A Maximum Value Or A Minimum Value. The Find The Value. Round To The Nearest Tenth.

F(x)= -x² -6x - 7

F has a max. I'm not sure how to do it without calculus though. i guess there's something about the coefficients of F...

#2 Let y = | x+a | +b, Where a ‡ 0 and b ‡ 0 . Explain how the values of a and b affect the graph of the functions as compared to the graph of y= |x|.

the a moves the graph along the x-axis, the b loves it up & down. how? how about you figure it out...

 

[ascky]

You can complete the square to find the max.