a (1,4),(-3,7)
M=Y2-Y1
X2-X1
M= (7)-(4) 1
(-5)-(1) =

3/6

Y-Y1=M(X-X1)
Y-4=3/-6(X-1)
4(Y-4)=3(X-1)
4Y-16=12X-1
4Y-16-12X+1=0
4Y+15-12X=0

B la intersección con el eje X (eje horizontal) de la reta siguient
4x, 3y

C -4 y pasa por el punto (0,-2)

X formula

1 (1)-4y

2 (2)-4Y

3 (3)-4Y

4 (4)-4y

D (-2,1) , (0,-1)
M=Y2-Y1
X2-X1
M=(-1)-(1)

(())-((-2)

M= -2+2

Y-Y1=-2/+2(X-X1)
2(Y-1)=-2(X+2)
2Y-2+1X+2=0
2Y+2+2X=0

a (1,4),(-3,7)
M=Y2-Y1
X2-X1
M= (7)-(4) 1
(-5)-(1) =

3/6

Y-Y1=M(X-X1)
Y-4=3/-6(X-1)
4(Y-4)=3(X-1)
4Y-16=12X-1
4Y-16-12X+1=0
4Y+15-12X=0

B la intersección con el eje X (eje horizontal) de la reta siguient
4x, 3y

C -4 y pasa por el punto (0,-2)

X formula

1 (1)-4y

2 (2)-4Y

3 (3)-4Y

4 (4)-4y

D (-2,1) , (0,-1)
M=Y2-Y1
X2-X1
M=(-1)-(1)

(())-((-2)

M= -2+2

Y-Y1=-2/+2(X-X1)
2(Y-1)=-2(X+2)
2Y-2+1X+2=0
2Y+2+2X=0

-2x-y=8?

X formula resultado

1 2(1)-Y=8 y=10

2 2(2)-Y=8 Y=12

3 2(3)-Y=8 Y=14

Y=-5x-6

X formula resultado

1 Y=-5(1)-6 Y=-11

2 Y=-5(2)-6 Y=-16

3 Y=-5(3)-6 Y=-21

4 Y=-5(4)-6 Y=-26

Y=X

X formula resultado

1 Y=-5(1)-6 Y=-11

2 Y=-5(2)-6 Y=-16

3 Y=-5(3)-6 Y=-21

4 Y=-5(4)-6 Y=-26

X formula resultado

1 Y=(1) Y=1

2 Y=(2) Y=2

3 Y=(3) Y=3

4 Y=(4) Y=4

P(3,9) ,M=2

Y-y1=m(x-x1)
Y-9=2(X-3)

Y-9-2X=3
Y-6-2x=0

P (6,-7) ,M=-5
Y-y1=m(x-x1)
Y-7=2(x-6)
Y-7=2(x-6)
Y-7-2x=-6
Y-1-2x=0

P (-5,8) , M=2/5
Y-Y1=M(X-X1)
Y-8=2/5(X+5)
-5(Y+3)=2(X+5)
-5Y+15=2X-10
-5Y+15+2X+10=0
-5Y+25+10X=0

P (-6,-3) ,M= -3/4
Y-Y1=M(X-X1)
Y+3=-3/4(X+6)
3(Y+3)=4(X+6)
3Y+9=-4X+24
3Y+9+4X-24=0
3Y-15+4X=0