The function describes the the temperature change per minute:
f ( x ) = 89 x - 100°.
This is the graph of a linear function in the slope-intercept form:
y = m x + b
Starting point is - 100°, so b = - 100°
If the metal is at the temperature of 25° at the start of experiment, then it would be: b = 35°
The new equation: g ( x ) = 89 x + 25°
g ( x ) || f ( x ) ( parallel functions ), 25° - ( -100° ) = 125°
Answer: The graph of the function will translate vertically 125° up.