Answer:
Step-by-step explanation:
This is consider a linear pattern (arithmetic pattern).
We know this because it is either going up or down by the same number each time. It's going down by 10 in this case.
So -10 is the slope of this linear pattern.
The equation for a linear pattern is:
y=mx+b
where x represents the position the term is in
and
where y represents the actual term
and
where m is the slope
So we have y=-10x+b.
(x,y)
(term position in sequence, actual term)
(1,140)
(2,130)
(3,120)
(4,110)
We can find b by using a number with it's position in the sequence (that is plug in one of your points above).
y=-10x+b
140=-10(1)+b
140=-10+b
150=b (after adding 10 on both sides)
The explicit equation for the sequence is y=-10x+150.
They probably prefer you to write:
instead.
Answer:
B
Step-by-step explanation:
I looked it up
Answer:
1. y=4x-20
2. y=-2/9x+9/2
Step-by-step explanation:
Parralel lines always have the same slope
the sum of perpendicular lines should always equal -1...therefore the slope is the recirpocal of the given equation...hope this helps :)
Answer:
the slope is 7/6.
Step-by-step explanation:
Change 5/3 to 15/9. Then add 15 + 17 and put it over 9. 32/9