This equation shows the linear relationship between the number of pancakes on a plate and the total weight of the plate of pancakes. x represents the number of pancakes, and y represents the total weight.

Question

Use the equation to make a prediction. What will the total weight be when 4 pancakes are on the plate? Start by substituting 4 pancakes for x.
y
=
1.5x + 3.5
y
=
1.5 ·
+ 3.5

Answer 1

To predict the total weight when there are 4 pancakes on the plate, you can substitute \( x = 4 \) into the equation \( y = 1.5x + 3.5 \).

Let's do the substitution:

\[ y = 1.5(4) + 3.5 \]

Now, calculate:

1. \( 1.5 \times 4 = 6 \)
2. Add 3.5: \[ 6 + 3.5 = 9.5 \]

Thus, the total weight when there are 4 pancakes on the plate will be \( y = 9.5 \) units (the specific weight unit would depend on the context, such as pounds or kilograms).