Question

iris picked a bucket of raspberries to make jam. the table shows the cups of raspberries left in the bucket, y, as a function of the number of batches of jam she makes, x.
the rate of change is -2. it represents a decrease in the amount of raspberries in the bucket for each batch iris makes.
substitute x = 1 and y = 16 into the equation.
y = mx + b
y = -2x + b
? = -2(?) + b

batches, x	raspberries left in bucket (cups), y
4	10
7	4

Explanation:

Step1: Identify values for substitution

We are given to substitute $x = 1$ and $y=16$ into $y=-2x + b$.

Step2: Perform substitution

$16=-2(1)+b$

Answer:

The first '?' should be filled with $16$ and the second '?' should be filled with $1$.