Y = mx + b
slope(m) = -1/2
(5,2)...x = 5 and y = 2
sub and find b
2 = -1/2(5) + b
2 = -5/2 + b
2 + 5/2 = b
4/2 + 5/2 = b
9/2 = b
so ur equation for this line is : y = -1/2x + 9/2
y = -1/2x + 9/2......(7,r)....when x = 7
y = -1/2(7) + 9/2
y = -7/2 + 9/2
y = 2/2
y = 1
so ur missing variable is 1......ur set of points would then be (7,1) <=
You could substitute with 6 for x+9 and 9 for x+6 , otherwise it be 0=-3 or no solution
Answer:
15 dollars
Step-by-step explanation:
Its is true hope this helps
