Which pairs of lines are perpendicular? y=3x-5y=3x−5 and y=3x+4y=3x+4

y=3x-5y=3x−5 and y=1/3x-5y=1/3x−5

y=3x-5y=3x−5 and y=-1/3x-5y=−1/3x−5

y=3x-5y=3x−5 and y=-3x-5y=−3x−5

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.

answer:  

step-by-step explanation:

odd numbers are only divisible by 1 and itself.

even numbers are divisible by more than 1 and itself.

for example 6 is even because it is divisible by more than 1 and its self. 1 x 6= 6 ; 2 x 3= 6

and 7 is odd because only 7 x 1 equals seveb