Dinith88

In isolation, the QRS/picture you were given is likely (for your 'class') to indicate MI. SIRI pointed out why it would indicate MI. If you want to get specific (and likely impress your anatomy teacher), you can also conclude (by this picture) that the MI is 'transmural'. This can be distinguished by the deep Q-wave. 'Transmural' means the infarction has extended through the entire wall of the myocardium.These deep q-waves usually stay with the patient (on subsequent EKGs) for the rest of her life...and can be thought of as scars...and can be seen on someone who's not actively having and MI.
(You can have MI's that dont extend through the entire wall...these are known as Non-Qwave MIs (no Q-waves), non ST-elevation MI, or Acute Coronary Syndromes, etc.)
The elvated ST (again in this isolated picture) lends itself to the acute stage of MI because the ST elevation indicates actively 'dying/injured' myocardium.
Check out SIRIs picture again...and think of like this:
1) ST-segment/T-wave inversion represents ischemic myocardium..
2) ST elevation represents damaged/dying myocardium..
3) Deep Q-waves represent dead/scarred myocardium..
And...like others have said....in reality you need more information and such...but for the purposes of your class i'm betting thats what your teacher was getting at...