Calling the math genusis over here !! I need this question answered plz .

The y intercept is 4

It is located at the point (0, 4)

Explanation:

The y intercept is where the graph crosses the vertical y axis. This happens at 4 on the y axis. We can get more specific to say the location is (x,y) = (0,4). Though we could go for the shorter form because all y intercepts occur when x = 0.

x=2 & x=1

step-by-step explanation:

7*1=7

7*2=14

7 is less than 21

14 is less than 21

y=mx+b

step-by-step explanation:

m slope

b y-intercept