Answer:
-57.14%
Step-by-step explanation:
(x^2 +5x+2.5^2) +4+5
(x+2.5)^2+9
vertex -2.5,9
y/3 = h
Multiply both sides by 3:
y = 3h
5.6mile
7 x
-- = --
80 64
7×64=80x
448=80x
x=5.6
The graph that does not represents a proportional relationship is: A (see image attached below).
<h3>What is a Proportional Relationship?</h3>
A proportional relationship has a constant, which is uniform and is defined in the equation y = kx, as k. This means a relationship that is proportionate will have an equation in that form.
For a proportional graph, the line must pass through the point of origin which is denoted by the ordered pair, (0, 0).
Therefore, from the options given, the option B represents a proportional relationship because it contains (0, 0), while option C and D takes the form of y = kx.
Therefore, option A does not represent a proportional relationship.
Learn more about proportional relationship on:
brainly.com/question/15618632
#SPJ1