Chapter 13.7, Problem 27PSD

To determine

To find: The number of the lattice points.

Answer to Problem 27PSD

The number of the lattice points are $20$ .

Explanation of Solution

Given information:

The given equation is,

  $x^2+y^2=25$

The co-ordinates of the line are $\left(-3,0\right)\text{and}\left(0,2\right)$ .

Consider the graph of the given equation and the line,

  

From the graph, the number of the lattice points are $20$ .

Thus, the number of the lattice points are $20$ .