Answer:
a) m = -6/5
b) m = -5/6
Step-by-step explanation:
The slopes of parallel lines are the same. The parallel line will have a slope equal to that of the line it is parallel to, -6/5.
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The slopes of perpendicular lines are the opposite of the reciprocal of one another. The perpendicular line will have a slope that is the negative reciprocal of the slope of the one it is perpendicular to: -1/m = -1/(6/5) = -5/6.
The reciprocal of a fraction is your fraction flipped and you should be able to multiply a fraction by it's reciprocal to get 1 all numbers and their reciprocals equal 1.
Make x=0 in the second equation, giving you y=-3. If you plug that in to the top equation you would get x-3(-3)=-19, x+9=-19,x=-28.
so namely, the "common difference" d = -4, and the first term a₁ = 7.
Answer:
(-20x -40)
Step-by-step explanation:
