Answer:
<h2>Function 1 has the least minimum value and its coordinates are (2. - 7).</h2>
Step-by-step explanation:
The first function is

The second function is
x g(x)
-2 2
-1 -3
0 2
1 17
The vertex has coordinates of
, where
and
.
Let's find the vertex for the first function where
and
.


Therefore, the vertex of the first function is at
.
Now, the minimum value of the second function can be deducted from its table, which is
.
Therefore,
has -7 as minimum value and
has -3 as minimum vale.
So, the right answer is B, because -7 is less than -3.
The inequality : 21d + 250×0.1 =<115
By solving the inequality, the value of d = 4.28 days i.e 4 days (Approx)
So i don't think the maximum no.of days will be 5.
3x - 5 = 10 or 3 × 5 - 5 = 10
y ÷ x - 4 = 14 or 36 ÷ 2 - 4 = 14