Question 614263
4x^2 + 25y^2 = 100, and then make a table from that equation 
:
25y^2 = -4x^2 + 100
y^2 = {{{((-4x^2+100))/25}}}
:
y = +/-{{{sqrt((-4x^2+100)/25)}}}
:
x=0
y = +/-{{{sqrt((-4(0)+100)/25)}}}
y = +/-{{{sqrt(100/25)}}}
y = +/-{{{sqrt(4)}}}
y = +/-2
:
x=5
y = +/-{{{sqrt((-4(5^2)+100)/25)}}}
y = +/-{{{sqrt(0/25)}}}
y = 0
:
x=-5
y = +/-{{{sqrt((-4(-5^2)+100)/25)}}}
y = +/-{{{sqrt(0/25)}}}
y = 0
:
I picked values for x that gave integers, the domain will be -5 to +5
:
a Table from my Ti-83
 x | y
-------
-5 | 0
-4 |1.2
-3 |1.6
-2 |1.83
-1 |1.96
 0 | 2
+1 |1.96
+2 |1.83
+3 |1.6
+4 |1.2
+5 | 0
and the neg portion of the +/- square root
 x | y
--------
-5 | 0
-4 |-1.2
-3 |-1.6
-2 |-1.83
-1 |-1.96
 0 | -2
+1 |-1.96
+2 |-1.83
+3 |-1.6
+4 |-1.2
+5 | 0