Answer:
Point (2, 20) does not lie on the given curve.
Step-by-step explanation:
Let us see explanation:

Answer:
y-intercept = 1
Step-by-step explanation:
Here 1 grids crossing means increasing or decreasing by 1 grid. Here we are seeing the line crosses 1 grid above 0. So its positive 1. From here we find the y intercept is +1. Line crosses at coordinate ( 0 , 1 )
The second one is a perfect square trinomial
X^2+16x+64
60% if there are only 10 white and black balls