Answer:
b
Step-by-step explanation:
A. If the slopes of two lines are negative then the reciprocals, of the lines are perpendicular.
Subtract 8 from both sides: 5x=-10
Divide by 5: x=-2
Answer:
Step-by-step explanation:
Substitution method can be applied in four steps. Step 1: Solve one of the equations for either x = or y = . Step 2: Substitute the solution from step 1 into the other equation. Step 3: Solve this new equation Happy too help!
Answer:
always 1
Step-by-step explanation: