What is the equation of the blue line?

y=4x -3

This is one equation you can use

Y= 4x-3

Step-by-step explanation:

The y-intercept is -3,

the slope is 4:

rise over run= 4/1 or 4

so 4x-3

I hope this helps!

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