The brain helped him think that
Answer:
Either one: the two line have a point in common, or infinite: they are the same line.
Answer:
b=7
Step-by-step explanation:
A=bh/2
28=8b/2
56=8b
b=7
Write the vertex form of the equation and find the necessary coefficient to make it work.
.. y = a*(x +3)^2 -2
.. = ax^2 +6ax +9a -2
You require the y-intercept to be 7. So, for x=0, you have
.. 9a -2 = 7
.. 9a = 9
.. a = 1
The equation you seek is
.. y = x^2 +6x +7