ɐ ɡɹˈæf əvɚ ɹˈiːəl fˈʌŋkʃən kæn biː dɹˈɔːn ɪn tˈuː dᵻmˈɛnʃənz bɪkˈʌz ðɛɹˌɑːɹ tˈuː ɹˌɛpɹᵻzˈɛntᵻd vˈɛɹɪəbəlz,  ænd .
A graph of a real function can be drawn in two dimensions because there are two represented variables,  and .