Final answer:
The equation of the line is y = 2.5x - 70.
Step-by-step explanation:
To find the equation of a line that contains a given point and has a given slope, we can use the point-slope form of a linear equation: y - y1 = m(x - x1), where (x1, y1) is the given point and m is the given slope.
Using the point (46, 45) and slope 2.5, we can plug these values into the equation:
y - 45 = 2.5(x - 46)
Simplifying, we get:
y - 45 = 2.5x - 115
Finally, rearranging the equation, we obtain:
y = 2.5x - 70
Therefore, the equation of the line that contains the point (46, 45) and has a slope of 2.5 is y = 2.5x - 70.