How do you write an equation for a line that passes through a(-3,-7) and parallel to the x-axis

The equation would be y = -7

Step-by-step explanation:

Lines that are parallel to the x-axis have no slope and therefore can be written as y = (a number). That number can be found as the y-value in the ordered pair.

y = -7

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