Lucas wants to enlarge a 3- by 5-inch photo to a 7 1/2 by 12 1/2 inch photo. What is the scale factor of the dialation?

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

answer: (3,11) is your answer.

a.)the line for function b is steeper

idk

step-by-step explanation: