Equation in slope-intercept form that contains (4,1) and (-2,-1)

Y = mx + b ;

Then, 1 = 4m + b and -1 = -2m + b ;
b = 1 - 4m ;
-1 = -2m + ( 1 - 4m ) ;
-1 = -2m + 1 - 4m;
-1 - 1 = -6m;
-2 = -6m ;
m = ( -2 ) / ( - 6 );
m = 1 / 3 ;
b = 1 - 4 * ( 1 / 3 ) ;
b = 1 - 4 / 3;
b = - 1 / 3 ;
y = ( 1 / 3 )x - 1 / 3 ;

4.) x=-3 and y=4

Step-by-step explanation:

[x+4] + [-9x] = [28]

First plug in x into the equation

[-3+4] + [-9(-3)] = [28]

[1] + [27] = [28]

1+27=28 (True)

Next, plug in y into the equation

[y^2+1] + [-17] = [0]

[(4)(4)+1] + [-17] = [0]

[16+1] + [-17] = [0]

[17] + [-17] =[0]

17 + -17=0 (True)

The Answer is D- X = -3 and Y= 4