Hello,
The sequence is geometric .
(a serie is a sum)
On 2 the equation will be 5,750-500x when you graph that on the y-axis put go up 5,750 and over 0 from tag point go down 500 and to the right 1.. And on b it will be 3,500-250x on the y-axis go up 3,500 and over 0 from that point go down 250 and over to the right 1..
5x - y = -3......this is just a matter of subbing in ur answer choices to see which one makes the equation true.
5x - y = -3.....subbing in (-2,-7)...x = -2 and y = -7
5(-2) - (-7) = -3
-10 + 7 = -3
-3 = -3 (correct)
so ur answer is : B. (-2,-7) <==
Answer: z = -3 , y = 2 , x = 2
