The correct answer is option A. Erica is correct in saying that the two lines are not necessarily the same and we should also look at the y-intercepts before determining how many solutions there were. <span>Two lines with equal slopes could be the same line, but only if they have the same y-intercept.</span>
Answer:
the second one iy s very incorrect
Combine like terms, 1+6 is 7 and 2t+4t is 6t. so 6t+7=55. get the t by itself by subtracting 7 from both sides. 6t=48, divide by 6. t=8
we are given
y varies directly with x
so, we can write equation as

where
k is a constant
now, we need to find k
we are given
y=3 when x=8
so, we can plug it and find k


now, we can plug it back

(A)
we have got equation as

for finding inverse , we can switch x and y

now, we can solve for y


............Answer
(B)
we have

we can plug x=4 and find y

................Answer