Which graph decreases, crosses the y-axis at (0,-7) and then remains constant?

It Graph A Because It It Decreases Cross The Y-axis so it is A. That The Correct Answer

Solution:

1.Graph A: The function i.e the curve is decreasing because , p>q but f(p)< f(q), where p and q are two points on coordinate axis and cuts the Y axis at (0,-7), then it remains constant, i.e for , p=q, → f(p)=f(q).

2. Graph B: The curve increases because by taking two points a, b,  such that ,a>b then f(a)>f(b) and cuts y axis at (0,7),  then remains constant.

3. Graph C: The curve first decreases then cuts y axis at (0,-7) and then increases.Why it increases and decreases reason is written above.

We can also check whether a curve is increasing or decreasing if the curve is moving upwards then it is increasing and decreasing if it is slanting downwards.

So,OptionA →Graph (A) is correct answer.

none of the option is correct.

step-by-step explanation:

it says to find which expression equals 9^3 sqrt 10 = ?

9^3 sqrt 10 = 729 sqrt 10.

checking option a. 5 sqrt 10 + 4 sqrt 10

5 sqrt 10 + 4 sqrt 10

= 9 sqrt 10.

checking option b. 5^3 sqrt 10 + 4^3 sqrt 10

5^3 sqrt 10 + 4^3 sqrt 10

= 125 sqrt 10 + 64 sqrt 10

= 189 sqrt 10.

checking option c. 5 sqrt 10 + 4^3 sqrt 10

5 sqrt 10 + 4^3 sqrt 10

= 5 sqrt 10 + 64 sqrt 10

= 69 sqrt 10.

checking option d. 5^3 sqrt 10 + 4 sqrt 10

5^3 sqrt 10 + 4 sqrt 10

= 125 sqrt 10 + 4 sqrt 10

= 129 sqrt 10.

hence, none of the option is correct.