Question

@mandolino

Answer 1

Sorry for that

Answer 2

server problems

Answer 3

I'm still getting emails from like 7:34

Answer 4

weird

Answer 5

HW 1.7/prolem10: f(x)=-(x+7)^2+5

Answer 6

ok

Answer 7

a) The "parent function" is f(x)=x^2. This is like the simplest square function possible

Answer 8

So if there was x^4 and x^2 the "parent function" would be x^2?

Answer 9

b) The transformations of y=a(x-h)^2+k are
h horizontal
k vertical
a<0 x-axis reflection
in the case of you rproblem
b) you have horizontal shift of 7 units right; vertical shift of 5 units up; refection in the x-axis

Answer 10

re. you question: parent functions for polynomials are often taken to be "power function" that is of the form y = x^n where n is a positive integer.

Answer 11

for example:
y=x^2 is the parent function for a transformations such as

y=-x^2; y=(x+2)^2; y=x^2+5; etc.

Answer 12

Ok i get it

Answer 13

y=x^4 might be the parent function for transformations such as:

y=2x^4 or y=(x+5)^4 or y=x^4-10 etc

Answer 14

Can you see your HW in WS? problem 1.7/10c

Answer 15

Yes

Answer 16

which sketch is the answer?

Answer 17

I would guess C, but I honestly dont no

Answer 18

Hey I made a mistake when I wrote 7 units right: the x+7 is x-(-7) so it is 7 units left... sorry about that

Answer 19

Which graph is it?
a | b
===
c | d

Answer 20

B?

Answer 21

correct. the vertex is normally at (0,0)
the "x+7" shifts the graph 7 units left
the "+5+ shifts the graph 5 units up
the negative in from of the parentheses makes the parabola open downward (x-axis reflect)

Answer 22

Ok so when its an X- axis reflection its going to lay on the x-axis?

Answer 23

d) g(x)=-f(x+7)+5

the f(x) is x^2... see how the "-" the "x+7" and the "+5" fit

Answer 24

or pass through

Answer 25

Well the parent y=x^2 looks like this