The formula m= V2 - V1

X2 - X1

The product of these slopes is

This product

shows that the slopes are negative reciprocals. It is given

that the lines are perpendicular and we have shown that

the slopes of the lines are negative reciprocals.

Answer is (d-b/c-a)(c-a/-d+b)=1

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if farmer matt works for 8 hours a day, how many days will it take him to completely plant 12 rows of crops? each batch of cookies needs 3/4 cups of sugar.

step-by-step explanation: