Answer:
Step-by-step explanation:
The directrix is a vertical line, so the parabola is horizontal. The focus lies to the left of the directrix, so the parabola opens to the left.
For a left-opening parabola:
x = a(y-k)²+h,
a < 0,
vertex (h,k)
focal length p = 1/|4a|
focus (h-p, k)
directrix: x=h+p
Apply your data
focus (1,-4)
directrix x=2
vertex (1.5,-4).
focal length p = 0.5
a = -1/|4p| = -½
x = -½(y-2)²+ ½
-11
Step-by-step explanation:
your always have to do division multiplication first
-8-(12)/4=
-8-3=
-11
<span>5-(49/1-5)*2+9-3
= 5-(49-5)*2+ (9-3)
= 5 -44*2+ 6
= 5 -88+ 6
= -83+ 6
= -77
The final answer is -77~</span>
The mode indicates the highest frequency of a st of value (the most repeated data point).
In {23, 43, 43, 46, 43, 28, 12, 28, 28} we notice that 2 values are being repeated with the same frequency , that is 43 (3 times) & 28 (3 times).
This set is then bimodal