Question

solve the system of equations and identify the shape of the graph?
{7y^2+x^2=64
{ x+y=4

Answer 1

well you need substitution to solve them

take the 2nd equation and make x the subject and substitute into the 1st equation
and solve the resulting quadratic.

if you want to graph them use this site

https://www.desmos.com/calculator

just type in the equations as they are written

Answer 2

so i isolate the x on the second equation right? and then solve and then how would i know