10. Slope is 4, and (1, 3) is on the line.
Equation in standard form

y=4x-1

Step-by-step explanation:

standard form is y=mx=b

y=4x=b

add in the numbers you know to find b

3=4(1)+b

3=4+b

3-4=4+b-4

-1=b

so

y=4x-1

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2