Question

Which of these is a point- slope equation of the line that is perpendicular to y - 25 = 2(x - 10) and passes through (-3,7)

Answer 1

2y=-x+11

Explanation:

• use the formation that m1m2=-1
• of which y=mx+c
• m1=2,m2=-1/2
• solve by using m2on the line passing through -3,7
• which it will 2y=-x+11