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Nataliya [291]
3 years ago
14

Find the domain of the function. Write your answer in interval notation. f(x)=-4x² + 5x +1

Mathematics
1 answer:
nirvana33 [79]3 years ago
6 0

Answer:

All real numbers

(-∞, ∞)

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see here that our function is a parabola. We also see that we can plug in any number <em>x </em>and we would get an output <em>y</em>. Therefore, our domain is all real numbers:

(-∞, ∞)

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lutik1710 [3]
So we know that 3,4 and 5 are pythagorean triplet and these result from a right triangle sides length 
- than 3,4 and 5 mean right triangle so 2,5 and 4 mean acute triangle sure or you can prove it in this way too
- than 3^2 +4^2 =5^2 => a right triangle so than 
2^2 +4^2 < 5^2 => an acute triangle 

hope helped 
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Sians room is in the shape of a square. It’s area is 121 square feet . How long is one side of sian’s room ?
Sladkaya [172]
11. Square root of 121
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If you were to graph 1.14, 1.15, and 0.5. what would you count by on your number line?
GREYUIT [131]

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6 0
3 years ago
Consider the following graph of an absolute value function
Ahat [919]

A

The domain is -∞ < x < ∞

B

The range is -∞ < x ≤ 3

C

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D

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7 0
3 years ago
Answer plz it’s impirtanttttt
Vinvika [58]

Part a) In 35 minutes, 25 number of pages have been read.

Part b) There is positive association between time and the number of pages being read

Step-by-step explanation:

Part a) What is the meaning of the point (35,25)

35 is the value of x-axis and 25 is the value of y-axis

x-axis represent Time(minute) while y-axis represent Number of pages read

So, in 35 minutes, 25 number of pages have been read.

Part b) Is the association between time and number of pages positive or negative? state the association in terms of variables.

Association is positive if increasing one variable, other variable is also increasing.

Association is negative if increasing one variable, other variable is decreasing.

In the given graph, the association is positive. Increasing the time, the number of pages being read are also increasing.

if time is 20 minutes, number of pages read are 12.5. if time is 25 minutes then number of pages read are 17

So, there is positive association between time and the number of pages being read.

Keywords: Association between variables

Learn more about Association between variables at:

  • brainly.com/question/4599759
  • brainly.com/question/13068373

#learnwithBrainly

3 0
3 years ago
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