The line of symmetry that divides a parabola in half as "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".
A parabola is an approximately U-shaped, mirror-symmetrical plane curve. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line. Three different parabolas exist. Vertex form, standard form, and intercept form are the three forms. You can access a unique key feature for the graph on each form. A parabola's general equation is written as y = a(x - h)² + k or x = a(y - k)²+ h. Vertex here is indicated by (h, k).
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b. 0 only
c. 17 only
d. –17 only
a. 1
b. 362,880
c. 60,480
d. 84
2. Identify the sampling method.
You want to determine the number of text messages students at your school make in a month. You randomly ask everyone in each of your classes.
Choose one answer.
a. random
b. systematic
c. stratified
d. none of these
Answer:
$12.55
Step-by-step explanation:
Subtract! 20 - 7.45