Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
Exact Form:
y
=
7
4
,
13
4
Decimal Form:
y
=
1.75
,
3.25
Mixed Number Form:
y
=
1
3
4
,
3
1
4
Step-by-step explanation:
You have to subtract 3 from both sides.
(0,30), (1,20)
(20-30)/(1-0) = -10/1 = -10 slope
We know y intercept is 30
Equation: y = -10x + 30
Answer:
Answer 2
Step-by-step explanation:
We start with (log to the base x of 8) = y and want to find the value of y.
Obviously the base here is x.
Therefore,
(log to the base x of 8) y
x = x
The quantity on the left side of this equation simplifies to 8.
y
Then we have 8 = x
We'll need to solve this equation for y. To do so, take the common log of both sides, obtaining:
log 8
log 8 = y log x, so that y = ----------- This corresponds to given answer 2.
log x
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