Mr. chang paid the least because 10% off 25 is more than 20%off 30
Answer:
I'm pretty sure the answer is D
Hello,
Equation is y=k(x-1)²-9
and when x=0,y=-6==>-6=k*1²-9==>k=3
y=3(x-1)²-9
when y=0, 3(x-1)²-9=0
==>(x-1-√3)(x-1+√3)=0
x-intercepts are (1+√3,0) and (1-√3,0)
Answer B.
These are the steps good luck
I need to know the rest of the question in order to help you! :D