Sarah received scores of 85, 92 and 78 on her first three exams of the grading period. What is the lowest score Sarah can earn o
1 answer:
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Answer: y =
Step-by-step explanation:
We could find two points on graph to find the slope of the graph since we already know its y-intercept.The y-intercept is when x is 0.
We could find the points (0,-3) and another points ( 3,-2) to solve for the slope we will find the difference in y and divide it by the difference in the x values.
(0,-3)
(3,-2)
y -3 - (-2) = -1
x 0 - 3 = -3
-1/-3 = 1/3
so now we know the slope is 1 thirds or 1 over 3 and the y intercept is -3
so the equation will be y = 1/3x - 3
