Using a Button to Activate a Buzzer

const int buttonPin = 2; //set pin 2 for the buttonconst
int buzzerPin = 4; //set pin 4 for the buzzer
int buttonState = 0; //buzzer starts off
 
void setup()
{
 pinMode(buzzerPin, OUTPUT);
   //define the output and input in the  equation here
 pinMode(buttonPin, INPUT);
}
 
void loop()
{
 buttonState = digitalRead(buttonPin);
 
 if (buttonState == HIGH) {
            // turn buzzer on:
        digitalWrite(buzzerPin, HIGH);
 }
else {
           // turn buzzer off:
        digitalWrite(buzzerPin, LOW);
 }
}