The expression that matches the represent the number of pushups done by Jacob after x sets is -3x + 30
An equation is an expression that shows the relationship between two or more numbers and variables.
Independent variables represent function inputs that do not depend on other values, while dependent variables represent function outputs that depends on other values.
Let y represent the number of pushups done by Jacob after x sets. he does 3 fewer push-ups in each set after the first, hence:
y = -3x + 30
The expression that matches the represent the number of pushups done by Jacob after x sets is -3x + 30
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