Please answet :)
Part 1:
Solve each of the quadratic equations below and describe what the solution(s) represent to the graph of each. Show your work to receive full credit.
y = x2 + 3x + 2
y = x2 + 2x + 1
Part 2:
Using complete sentences, answer the following questions about the two quadratic equations above.
Do the two quadratic equations have anything in common? If so, what?
What makes y = x2 + 3x + 2 different from y = x2 + 2x + 1?

Question

Please answet :)
Part 1: 
Solve each of the quadratic equations below and describe what the solution(s) represent to the graph of each. Show your work to receive full credit.
y = x2 + 3x + 2
y = x2 + 2x + 1
Part 2: 
Using complete sentences, answer the following questions about the two quadratic equations above.
Do the two quadratic equations have anything in common? If so, what?
What makes y = x2 + 3x + 2 different from y = x2 + 2x + 1?

anonymous · Answer

help please!

campbell_st · Answer

the 1st quadratic 

factorise to see where the curve cuts the x-axis

(x +2)(x +1) = 0   will result in x = -2 and x - 1

this means the parabola 

$$y = x^2 + 3x + 2$$

is concave up, cuts the x-axis at x = -2 and x = -1

has a line of symmetry at x = - 1.5

has a minimum value of y = -0.25

cuts the y axis at y = 2

|dw:1342167454725:dw|