Standard form for a parabola:
( x - h )² = 4 p ( y - k )
Vertex: ( h, k ) = ( -4, 2 )
Displacement from vertex to focus:
p = 2/8 = 1/4
( x + 4 )² = 4 · 1/4 ( y - 2 )
y = ( x + 4 )² + 2
or general form:
x² + 8 x - y + 18 = 0
Answer:
a_n=a_1+(n-1)d
Step-by-step explanation:
sorry for late anwser
P=(15x-2+4x+7)2=(19x+5)2=38x+10
Answer:
$247
Step-by-step explanation:
It depends.
Most months, you will earn $1900, so your budget will be ...
... 12% × $1900 = $228.
In one month out of 6, you will earn $2850, so your budget can be ...
... 12% × $2850 = $342.
_____
If you average out your earnings over 6 months, and compute your budget on that basis, then your monthly grocery budget is ...
... ($950 × 13)/6 × 12% = $247
