Posted by Jen on Tuesday, June 9, 2009 at 6:27pm.
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, Tuesday, June 9, 2009 at 7:10pm
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, Tuesday, June 9, 2009 at 7:26pm
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, Tuesday, June 9, 2009 at 7:33pm
 (3) = + 3
I think you probably told the calculator 4  3 = 1 but it is 4 (3) = 4+3 = 7

Algebra  Jen, Tuesday, June 9, 2009 at 7:50pm
Got it! Thanks!
Answer This Question
Related Questions
 Algebra  Use substitution to determine whether the ordered pair (– 3, – 2) is a...
 Math  Use substitution to determine whether the ordered pair (–2, –3) is a ...
 algebra  can you please show me how to do this? Determine whether the ordered ...
 Math  Using substitution, tell whether the ordered pair is a solution to the ...
 algebra  Solve the system of equations using the addition (elimination) method...
 Algebra 4  Determine whether the ordered pair is a solution (8,3);8x+y,2
 algebra  determine whether the ordered pair is a solution of the inequality (8...
 Algebra  Determine whether the ordered pair is a solution of the inequality. (6...
 algebra 1  Solve this system using elimination. If a single solution exists, ...
 math algebra  Solve the following system using elimination. If a single ...
More Related Questions