8. Détermine chaque produit à l'aide d'une droite numérique. a) (+6)times (-1) b) (+3)times (+9) c) (+2)times (+6) d) (+4)times (-5)

## Step 1: Multiplying (+6) x (-1)<br />### We start at 0 on the number line. Since we are multiplying by -1, we change the direction and move 6 units once in the negative direction. This lands us at -6.<br />## Step 2: Multiplying (+3) x (+9)<br />### We start at 0 on the number line. We move 9 units, 3 times in the positive direction. This lands us at 27.<br />## Step 3: Multiplying (+2) x (+6)<br />### We start at 0 on the number line. We move 6 units, 2 times in the positive direction. This lands us at 12.<br />## Step 4: Multiplying (+4) x (-5)<br />### We start at 0 on the number line. Since we are multiplying by -5, we change the direction and move 5 units, 4 times in the negative direction. This lands us at -20.