Answer:
The slope
Step-by-step explanation:
Given that:
Initial grading ; For each correct answer : 50 points + 5
New grading ; For each correct answer = 50 + 7 points
The reading coukd be expressed in slope intercept form of an equation as :
Initial grading :
y = 50 + 5x
New grading :
y = 50 + 7x
y = total score ; x = number of correct answers
The change in y per unit change in x which is the slope, is the only difference in the two equations, the intercept (50) stays the same.
Therefore, only the slope changes.
