« previous next »

Author Question: Quadratics stretching and vertex form help? (Read 1567 times)

federox

  • Sr. Member
  • ****
  • Posts: 308
on: Jun 18, 2013
Hi, so the questions tells me to...
Evaluate the following function at 3,-3,0, and z
D(r)= -(r-2)^2+8
I got the correct answers for the first three numbers but got "z" incorrect. Can someone please show me how to get the correct answer?

This is what I did...
D(z)= -(z-2)^2+8
= -z^2+4+8
= -z^2+12


curlz

  • Hero Member
  • *****
  • Posts: 538
Reply #1 on: Jun 18, 2013
-(r-2)^2+8=
-[r^2-4r+4]+8=
-r^2+4r+4


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Renal calculi (stones) can form in several areas within the urinary tract. When they form in the kid Renal calculi (stones) can form in several areas within the urinary tract. When they form in the kid
Bonobo females form close alliances, maintained through sex, but these alliances are lacking in chim Bonobo females form close alliances, maintained through sex, but these alliances are lacking in chim
Thick-walled barrel-shaped arthrospores on thin glass like hyphae; the room-temperature form of ... Thick-walled barrel-shaped arthrospores on thin glass like hyphae; the room-temperature form of ...
Classification of Clouds According to Height and Form Classification of Clouds According to Height and Form
Z/W inheritance of feather form in poultry is revealed by analysis of reciprocal crosses Z/W inheritance of feather form in poultry is revealed by analysis of reciprocal crosses
Short form of amino acids Short form of amino acids
Video: Bone elongation - processes at the epiphyseal plate

For a complete list of videos, visit our video library