Which of the following equations has a maximun?

Mathematics

2 answers:

dlinn [17]2 years ago

8 0

Answer:

The answer is option D.

y = - 7x² - 1

It's maximum is ( 0 , - 1)

Hope this helps you

Vedmedyk [2.9K]2 years ago

5 0

Linear functions never have maxima and minima, so a) is discarded.

In the options there are quadratic functions, they can present either a maximum or a minimum.

You can know instantly by seeing the sign of the variable ${x}^{2}$ , if positive the parabola opens up, then it will have a minimum, if negative the parabola opens down, having a maximum.

$\mathbb{ANSWER} \rightarrow \boxed{ \boxed{y = - {7x}^{2} - 1 }}$

You might be interested in

In a triangle, the midsegment is ___________ to and ____________ of the non-intersecting side.

erastova [34]

In a triangle, the midsegment is parallel to and half of non-intersecting side.

7 0

3 years ago

Read 2 more answers

Find the degree of the polynomial

Marrrta [24]

Answer:

degree is highest exponent in equation and 2x² has 2 and is highest

5 0

3 years ago

The smiley family had a $62.00 bill and service was great! The tip 20% what is the. Total they paid

Georgia [21]

Answer:

$74.40 cents

Step-by-step explanation:

Given the following question:

20% of 62

In order to find the answer, we use the formula to calculate percentage, then we add that answer onto the bill.

$\frac{p\times n}{100}$
$\frac{20\times62}{100} =20\times62=1240\div100=12.4$
$=12.4$

Now add:
$62+12.40=74.40$
$=74.40$

Which means in total after a 20% tip the Smiley family paid "$74.40 cents" for their meal.

Hope this helps.