So the slope is 200 as he gains $200 each day
and the y intercept is 500, since he receives the $500 only once
y = 200x + 500
We have the following equation:
x2 + 4x = - (y2 - 20)
Let's review step by step:
step 1:
x2 + 4x = -y2 + 20
Answer: OK
step 2:
x2 + 4x + 4 = -y2 + 20 - 4
Answer: Wrong
The correct step is:
x2 + 4x - 4 = -y2 + 20 - 4
Or equivalently:
x2 + 4x + 4 = -y2 + 20 + 4
Answer:
he did make an error in his work in step 2
Answer:
student 1
Step-by-step explanation:
48x+56=8(6x+7)
