Hàm số fx đồng biến trên R có bao nhiêu cặp số nguyên (a;b) thõa mãn f(4) <= f(a2+b2)

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

happy to

pls mark as brainliest

it is x=-4

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116