How do you find the slope perpendicular to #x=-7#?

Related questions

• How do you determine the equation of a line that is perpendicular to another?
• What is the relationship between equations of perpendicular lines?
• How do you determine if a line is perpendicular, parallel, or neither?
• How do you find the equation of the line perpendicular to the line #y=5# and passing through #(5, 4)#?
• What is the slope that is perpendicular to #2x+8y=9#?
• How do you determine if the two lines are parallel, perpendicular, or neither if line a passes...
• How do you find the equation of a line that is perpendicular to #y=2/3x-4# and goes through point (6,-2)?
• How do you determine if #5y+3x=1 # is parallel, perpendicular to neither to the line #y+10x=-3#?
• Question #3177e
• How do you find the equation of the line through the point (-4 , 5) and is perpendicular to the x axis?