Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

Fill in the missing term so that the quadratic equation has a graph that opens up, with a vertex of (– 3, – 25), and x intercepts at x = -8 and x = 2. (Do not include the negative sign in your answer.) y = x2 + 6x − ___

OpenStudy (anonymous):

tmi

OpenStudy (anonymous):

if the vertex is (-3,-25) you can write \[-25=(-3)^2+6\times (3)+c\] and solve for c

OpenStudy (anonymous):

or you could write \[0=(-8)^2+6\times (-8)+c\] and solve for c

OpenStudy (anonymous):

for that matter you can write \[y=(x+8)(x-2)\] multiply out and find c. that may be easiest. \[y=x^2+6x-16\]

OpenStudy (anonymous):

in fact the very very simplest way to do it is take the zeros, -8 and 2, and multiply them together to get \[c=-16\]

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
AsianPanda08: What should i eat for dinner tonight? I can't choose
1 hour ago 51 Replies 2 Medals
Nina001: Trying 2 figure out what is the square root of 8746685
11 minutes ago 30 Replies 2 Medals
SnowyBreaks: Is it bad to lose 3.8 pounds in less than 2 days?
42 minutes ago 43 Replies 0 Medals
kaelynw: tried a lil smt, the arm is off but i like the other stuff
3 minutes ago 11 Replies 2 Medals
laylasnii13: Who wanna write or make a song with me???
5 hours ago 8 Replies 0 Medals
kaelynw: art igg
13 hours ago 13 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!