Answer:
<em>y = </em><em> x + 1 </em>
Step-by-step explanation:
If AB ⊥ CD , then ( ) ( ) = - 1
y = - x + 3
y - ( - 4) = ( x - 7) ⇔ <em>y = </em><em> x + 1 </em>
Answer:
x-7>0
Straight answer: x-7
Step-by-step explanation:
Assuming that the timber is X cm long and 7cm was cut off, there remaining amount is x - 7cm. In order for 7cm to be cut off, the timber must have been > 7cm long => x > 7 => x - 7 > 0
Answer:
3
Step-by-step explanation: