What is the slope of the graph of $y=t(x)$ in the xy-plane?

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For the linear function

p

p (c) = - 6

where

c

is a constant,

p (3) = 26

, and the slope of the graph of

y = p (x)

in the xy-plane is 8. For the linear function

t

t (c) = - 7

and

t (4) = 38

What is the slope of the graph of

y = t (x)

in the xy-plane?

-1