HELLO!

POINT-SLOPE FORM

Y-Y1=M(X-X1)

• (2,5) m=7
• Y-5=7(x-2)
• Y-5=7x-14
• Y=7x-9

PARALLEL AND

PARALLEL LINES HAVE THE SAME SLOPE

• Y=5x+3
• Y=5x-7
• The number next to the x determines it
• m1=m2 m=slope
• They both have a slope of 5

PERPENDICULAR LINES HAVE OPPOSITE RECIPROCAL SLOPES

• Y=2x-4
• Y=-1/2x+8
• m1= -1/m2
• The slopes 2 and -1/2 are perpendicular

THE END