Posted by Jen on .
Use substitution to determine whether the ordered pair (–2, –3) is a solution of the equation x2 – y = 7. Show some work. Be sure to state your conclusion about whether the ordered pair is a solution or not.

Algebra 
Reiny,
I assume you meant x^2  y = 7
let's sub in the given point
Left Side = (2)^2  (3)
= 4 + 3
= 7
Right Side = 7
Mmmhh, what do you think? 
Algebra 
Jen,
I think that makes sense, although I used 2 computer based calculators that told me the solution was 1. So the annswer is 7 and solution is a true statement.

Algebra 
Damon,
 (3) = + 3
I think you probably told the calculator 4  3 = 1 but it is 4 (3) = 4+3 = 7 
Algebra 
Jen,
Got it! Thanks!