I need help on part one please :). Thank you so much!

look at explanation for answer...

Step-by-step explanation:

y = 2x + 1

so you want the coordinates (1,3)

so you input the x coordinate into the equation,

y = 2(1) + 1

y = 2 + 1

y = 3

but if you have to write a new equation to get coordinates (1,3)

you could write the equation

y = 3x

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

the answer is su.k.my? ? co.kc