Which statement is always true?
a. a linear relationship is proportional.
b. a linear relationship is non-proportional.
c. a proportional relationship contains the point ( 0 , 0 ) .
d. a non-proportional relationship has a constant rate of change.

A

Step-by-step explanation:

When we say proportional, we basically mean two quantities are based on a multiplicative constant. For example:

1:2 is proportional to 5:10, because if we reduce 5:10, we get 1:2.

Also, in terms of coordinate geometry, we can say line

y = ax

and

y = bx

are proportional if a:b = constant always.

We say that is a linear line. Linear relationship.

Now, looking at the answer choices, we can eliminate B and C [Choice C is easily eliminated because point (x,y) doesn't matter]. Also, we ccan eliminate D because this is just the opposite.

So answer choice A holds true.

A is right.

well what you have to do is divide 84 by 6 so theanswer

step-by-step explanation:

84 divided by 6 = 14

and that lightbulb changing party must be freaking lit!

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.