+0  
 
0
94
5
avatar+316 

A is a constant such that the graph of the equation Ax-3y=6 passes through the point (1,-3). Find A.

 Jun 22, 2020
 #1
avatar+782 
+1

We plug in the given point into the equation Ax-3y=6.

 

We then have:

 

A(1)-3(-3)=6

A+9=6

A=-3

 Jun 22, 2020
 #2
avatar+21953 
+1

        Ax - 3y  =  6     and     x = -1     and     y = -3:

A(-1) - 3(-3)  =  6

         -A + 9  =  6

                -A  =  -3

                 A  =  3

 Jun 22, 2020
 #3
avatar+782 
+1

geno, I believe you plugged in the wrong x value.

gwenspooner85  Jun 22, 2020
 #4
avatar+21953 
+1

I did -- thank you!

geno3141  Jun 22, 2020
 #5
avatar+782 
0

No problem.

gwenspooner85  Jun 22, 2020

8 Online Users