Answer:
a.
.
b. The axis of symmetry for
is
.
Step-by-step explanation:
a. The vertex form of a quadratic is given by
, where (h, k) is the vertex.
To convert from
form to vertex form you use the process of completing the square.
Step 1: Write
in the form
. Add and subtract 4:

Step 2: Complete the square 

b. The graph of a quadratic function is a parabola. The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola. The x-coordinate of the vertex is the equation of the axis of symmetry of the parabola.
For a quadratic function in standard form,
, the axis of symmetry is
.
The axis of symmetry for
is
.
Look at the graph shown below.
Solve the equation for x by finding a, b and c of the quadratic and then applying the formula
x = 5,1
Answer:
the probability will be 0.
Step-by-step explanation:
0.12%= 0.0012= 3/2500.
Answer:
8
Step-by-step explanation:
from 5 to 20 its mutiplied by 4 and from 6 to 24 it mutiplied by 4, and last 10 ×4 is 40