HELLLPPP!y = -1/2x^2 + 2
y = -2x^2 + 3
y = -3/4x^2
y = -4/5x^2 - 5

For the quadratic equations shown here, which statement is true?

A) The graphs open upward.
B) The graphs open downward.
C) The graphs are symmetric about the x-axis.
D) The graphs are listed from narrowest to widest.

Answers

Answer 1
Answer: The correct answer is this one: "B) The graphs open downward. " Negative quadratic functions will give you a downward graph.

The equations 
y = -1/2x^2 + 2
y = -2x^2 + 3
y = -3/4x^2
y = -4/5x^2 - 5

are all negative. So they are facing downward.

Related Questions

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
For a client, a landscaper purchases 3 oak trees and 4 maple trees for $380. For his own home, the landscaper purchases 2 oak trees and 5 maple trees for $370. Which augmented matrix represents the situation?
There are many cylinders with a height of 9inches. Let r represent the radius in inches and v represent the volume in cubic inches what belongs in cell A
Can you help me solve this question please?
PLS HELP Write an absolute value equation for the graph shown to the right

A town has a population of 11000 and grows at 4% every year. What will be the population after 15 years, to the nearest whole number?

Answers

The population after 15 years, to the nearest whole number is 17600.

What is meaning of Percentage Increase ?

The percentage increase is calculated by first calculating the difference(increase) between the two numbers and then multiplying it by 100. The answer is noted in % .

It is given in the question that

A town has a population of 11000

It grows at 4% every year.

the population after 15 years = ?

The population increase can be determined by the formula of Amount used in Simple Interest

P₁₅ = P₀ + ( P₀ * 0.04 * 15)

P₁₅ = 11000 + (11000* 0.04 * 15)

P₁₅ =  17600

Therefore the population after 15 years, to the nearest whole number is 17600.

To know more about Percentage Increase

brainly.com/question/20818421

#SPJ2

Answer:

19810

Step-by-step explanation:

The net of a triangular prism and its dimensions are shown in the diagram. what is the lateral surface area of the triangular prism in square centimeters A-264 cm
B-240cm
C-225cm
D “Not here”

Answers

Answer: 120 sq in.

Step-by-step explanation:

SOLVE PLS I WILL GIVE BRAINIEST AND 5 STARSSolve for b:

  3.5b + (-8) = (-6.25b) - 6.5

Solve for x:
 
-5x + 3 > (-7x) - 12

Answers

Answer:

1)b=0.153846

2)x > -15/2

Step-by-step explanation:

I used this site called math-

way

Please help me with these five math questions1. z = 2/3 for z - 1/5 = 5/8
True or False
2. t = 9 for 10 ½ = t + 1 ½
True or False
3. k + 2 1/9 = 1 1/3
4. Jose ran 8 ¼ miles to practice for an upcoming marathon. His training goal is to be able to run 15 ¾ miles. Write an equation for the additional amount of miles, m, Jose needs to reach his goal.
5. Solve the equation above for m.

Answers

1.) false

2.) true

3.) k=.7777777

4.) 15 3/4-m=8 1/4

5.) m=7 1/2

A healthy human heart beats about 1,533,000 times in a year. A sparrow's heart beats about 241,776,000 times in a year. About how many times faster does the sparrow's heart beat compared to the human heart? Estimate using a single digit times a power of 10.

Answers

Answer:

2 * 10^2 times

Step-by-step explanation:

To get the number of times faster the Sparrow’s heart beat compared to the human heart, we divide the number of times the Sparrow’s heart beat compared to a human’s

That will be;

(241,776,000)/(1,533,000) = 157.7142857142857

Now, we want to use a single digit times a power of 10

That will be 1.577 * 10^2

Since it is a single digit, it will be 2 * 10^2

Final answer:

The sparrow's heart beats about 158 times faster compared to the human heart.

Explanation:

A healthy human heart beats about 1,533,000 times in a year, while a sparrow's heart beats about 241,776,000 times in a year.

To find the ratio, we divide the number of times the sparrow's heart beats by the number of times the human heart beats, which gives us:

Ratio = Sparrow's Heart Beats / Human Heart Beats

Ratio = 241,776,000 / 1,533,000

Ratio = 158

Therefore, the sparrow's heart beats about 158 times faster compared to the human heart.

Learn more about Heart rate here:

brainly.com/question/1155838

#SPJ12

The drawing of a flea was printed in a pamphlet regarding pet health. The actual length of the flea is 3 mm. The length of the flea in the scale diagram is 5.1 cm. Determine the scale factor.

Answers

Answer:

17

Step-by-step explanation:

First, convert the values into the same unit.

5.1 cm = 51 mm

51 ÷ 3 = 17