Question

::::)))))) help:?

Answer 1

4) You can determine the min or max value by using
x= (-b)/(2a)
we actually have a formula called the vertex formula
now if a>0 that means that the quadratic is concave up and you have a min value

Answer 2

if a<0 that means that the quadratic is concave down and you have a max value
Once you determine your x value then you take that x value and plug it into y=ax^2+bx+c to determine your y value. don't forget to sub a, b, and c this will give you the y coordinate of your vertex

Answer 3

do i just explain that for my answer?

Answer 4

http://www.purplemath.com/modules/grphquad2.htm

Answer 5

You really are not given a specific quadratic but the question is about it in general terms (which means how it applies to all quadratics). I have attached a link that you can read through

Answer 6

Quadratics only have 3 possible solutions
1) one solution called a double root ie (x-3)^2-0 would be a good example
2) two solutions because the quadratic crosses the x axis in two places
3) No solution (aka complex solutions) because it does not cross the x axis at all

Answer 7

Hate to be your teacher and have to grade all of those explanations. Anyone can explain this in many ways. Not sure how your teacher wants you to answer these but you could use examples of graphs, tables or equations

Answer 8

okay thanks :)

Answer 9

5) (-2,-1) is your vertex since it was given to you in vertex form

Answer 10

still not quite sure what to do though, do i just explain one of these ways or is there a specific answer to this?

Answer 11

5) Concave up btw now for the second part that quadratic is either on it side not sure which one could be on its right side or left slide (like the letter C) whereas in part one it is a u shape

Answer 12

these are open-ended questions which means you can answer them any way you want. Teacher generally look for evidence of math notation. So you could use a function like I did to explain a specific example.