Answer:
y=-2x+7
Step-by-step explanation:
slope intercept form is equal to y=mx+c
where y is the y value
x is the x value
m is the gradient
and c is the y intercept
so the equation for this set of values is equal to
y=-2x+7
4x-2 bc a pos x neg = neg

Hence the number of packages of screws in each shipping box is: 469
Hence option (B) is correct.