Answer:
a. y = 3x+4
Explanation:
We can use the equation of a line in slope intercept form where y = mx+b where m is the slope and b is the y-intercept.
The slope is given by
m = ( y2-y1)/(x2-x1)
m = ( 16-4)/(4-0)
= 12/4
= 3
The slope is 3 and the y-intercept is where x is 0
The y-intercept is 4
y = 3x+4