Referenced from lesson Sam the Butterfly - Applying Inequalities (Spring, 2021)

Directions: Use the Design Recipe to write a function safe-left?, which takes in an x-coordinate and checks to see if it is greater than -50.

Contract and Purpose Statement

Every contract has three parts…​

; __________:_______->_______

; __________________________________________________________________________________________

Examples

Write some examples, then circle and label what changes…​

(EXAMPLE (__________ ____)____________)

(EXAMPLE (__________ _____)_____________)

Definition

Write the definition, giving variable names to all your input values…​

(define (__________ __)

___________)

Directions: Use the Design Recipe to write a function safe-right?, which takes in an x-coordinate and checks to see if it is less than 690.

Contract and Purpose Statement

Every contract has three parts…​

; ___________:_______->_______

; _______________________________________________________________________________________

Examples

Write some examples, then circle and label what changes…​

(EXAMPLE (___________ ____)____________)

(EXAMPLE (___________ ____)____________)

Definition

Write the definition, giving variable names to all your input values…​

(define (___________ __)

___________)

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