Question

find the output, y, when the input, x, is 30.
y = 14 - 0.5x
y = \boxed{}

Explanation:

Step1: Substitute x=30 into equation

$y = 14 - 0.5\times30$

Step2: Calculate multiplication first

$0.5\times30 = 15$

Step3: Compute final value of y

$y = 14 - 15$

Answer:

$-1$