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

Directions: Use the Design Recipe to write a function is-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…​

examples:

______________ (___) is__________

______________ (____) is___________

end

Definition

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

fun ____________(_):

_________

end

Directions: Use the Design Recipe to write a function is-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…​

examples:

_______________ (___) is__________

_______________ (___) is__________

end

Definition

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

fun _____________(_):

_________

end

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