All categories

3 years ago

1. Explain whether each following example is proportional or non-proportional.

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

3 0

9514 1404 393

Answer:

(a), (b), (c) are non-proportional

(d) is proportional

Step-by-step explanation:

An equation or graph with a non-zero y-intercept is non-proportional. That is true for (a), (b), (c).

The table of (d) is proportional, with a constant of proportionality of 6.5.

Comment on (c)

In a proportional relation, price would go up with quantity, not down. If the prices both end in 9, one cannot be double the other, as would be required for the price of a gallon to be proportional to the price of a half-gallon.

You might be interested in

A expression for x²+ 8x + 15

topjm [15]

(x+5) (x+3) if i am correct.. I dunno for sure

4 0

3 years ago

Find Value of X 88 82 76 94

morpeh [17]

I think it is 88 not sure though

7 0

3 years ago

Read 2 more answers

Is 1,000 a rational number or a irrational or is it a whole number ?

ad-work [718]

Answer:

1,000 is both a rational number and a whole number.

If my answer helped, please mark me as the brainliest!!

Thank You!!

3 0

3 years ago

Find the length of the diagonal of a rectangular football pitch with sides 46.6 m and 78.9 m.

ICE Princess25 [194]

Answer:

d≈91.63m

Step-by-step explanation:

d=w2+l2=78.92+46.62≈91.63389m

7 0

2 years ago

F(x) = x2+3x+2 x2+5x+4 Why is there no zero at x = –1?

dmitriy555 [2]

You could rewrite $F(x)$ as

$\dfrac{x^2+3x+2}{x^2+5x+4}=\dfrac{(x+1)(x+2)}{(x+1)(x+4)}$

and be tempted to cancel out the factors of $x+1$ . But this cancellation is only valid when $x\neq-1$ .

When $x=-1$ , you end up with the indeterminate form $\dfrac00$ , which is why $-1$ is not a zero.

7 0

3 years ago