Write an equation for the line parallel to the x axis throug

Write an equation for the line parallel to the x axis through the point (0,-8).

Solution

parallel to x-axis means slope m=0

so plug m=0 and given point (0,-8) into formula y=mx+b

-8=0(0)+b

or -8=b

so formula y=mx+b changes to y=0x+(-8) or y=-8

Hence final answer is y=-8