'analogread' was not declared in this scope

int analogpin=A0;
int motorPin=9;
int value=0;
int speed;
void setup()
{
Serial.begin(9600);}

void loop()
{
speed=map(value,0,1023,0,255);
value=analogread(analogpin);
value=analogWrite(motorPin,Speed);
serial.printin(speed);
delay(100);
}

The function is analogRead(). Case matters.