Increasing and Decreasing Domain of a Parabola: Representation of missing b value

Question 1

Find the domain of the function:

$$ y=-3x^2-9 $$

Question 2

Find the domain of the function:

$$ y=-x^2-7 $$

Question 3

Find the domain of the function: $$ y=x^2+10 $$

Question 4

Find the domain of the function:

$$ y=x^2+10 $$

Question 5

Find the domain of the function:

$$ y=3x^2+21 $$

Examples with solutions for Increasing and Decreasing Domain of a Parabola: Representation of missing b value

Exercise #1

Find the domain of the function:

$y=-3x^2-9$

Video Solution

Answer

$x < 0$

Exercise #2

Find the domain of the function:

$y=-x^2-7$

Video Solution

Answer

$x < 0$

Exercise #3

Find the domain of the function: $y=x^2+10$

Video Solution

Answer

$x < 0$

Exercise #4

Find the domain of the function:

$y=x^2+10$

Video Solution

Answer

$x > 0$

Exercise #5

Find the domain of the function:

$y=3x^2+21$

Video Solution

Answer

$x < 0$

Question 1

Find the domain of the function:

$$ y=-x^2-10 $$

Question 2

Find the domain of increase of the function:

$$ y=3x^2+21 $$

Question 3

Find the domain of the function:

$$ y=-3x^2-9 $$

Question 4

Find the domain of the function:

$$ y=-x^2-7 $$

Question 5

Find the domain of the function: $$ y=-x^2-10 $$

Exercise #6

Find the domain of the function:

$y=-x^2-10$

Video Solution

Answer

$x < 0$

Exercise #7

Find the domain of increase of the function:

$y=3x^2+21$

Video Solution

Answer

$x > 0$

Exercise #8

Find the domain of the function:

$y=-3x^2-9$

Video Solution

Answer

$x > 0$

Exercise #9

Find the domain of the function:

$y=-x^2-7$

Video Solution

Answer

$x > 0$

Exercise #10

Find the domain of the function: $y=-x^2-10$

Video Solution

Answer

$x > 0$

Question 1

Find the domain of decrease of the function:

$$ y=-x^2+1 $$

Question 2

Find the domain of increase of the function:

$$ y=2x^2-50 $$

Question 3

Find the domain of increase of the function:

$$ y=-x^2+1 $$

Question 4

Find the domain where the function is increasing:

$$ y=x^2-4 $$

Question 5

Find the domain of decrease of the function: $$ y=x^2-4 $$

Exercise #11

Find the domain of decrease of the function:

$y=-x^2+1$

Video Solution

Answer

$x > 0$

Exercise #12

Find the domain of increase of the function:

$y=2x^2-50$

Video Solution

Answer

$x > 0$

Exercise #13

Find the domain of increase of the function:

$y=-x^2+1$

Video Solution

Answer

$x < 0$

Exercise #14

Find the domain where the function is increasing:

$y=x^2-4$

Video Solution

Answer

$x > 0$

Exercise #15

Find the domain of decrease of the function: $y=x^2-4$

Video Solution

Answer

$x < 0$

Question 1

Find the domain of decrease of the function:

$$ y=-x^2+9 $$

Question 2

Find the domain of increase of the function:

$$ y=3x^2-27 $$

Question 3

Find the domain of decrease of the function:

$$ y=-x^2+9 $$

Question 4

Find the domain of decrease of the function: $$ y=3x^2-27 $$

Question 5

Find the domain of decrease of the function:

$$ y=-2x^2+32 $$

Exercise #16

Find the domain of decrease of the function:

$y=-x^2+9$

Video Solution

Answer

$x > 0$

Exercise #17

Find the domain of increase of the function:

$y=3x^2-27$

Video Solution

Answer

$x > 0$

Exercise #18

Find the domain of decrease of the function:

$y=-x^2+9$

Video Solution

Answer

$x < 0$

Exercise #19

Find the domain of decrease of the function: $y=3x^2-27$

Video Solution

Answer

$x < 0$

Exercise #20

Find the domain of decrease of the function:

$y=-2x^2+32$

Video Solution

Answer

$x > 0$