To find the slope of the line, we can use the formula for slope which is (y₂ - y₁) / (x₂ - x₁) where (x₁, y₁) and (x₂, y₂) are two points on the line.
Using the points (-2,80) and (5,10):
Slope = (10 - 80) / (5 - (-2)) = (-70) / 7 = -10
To find the y-intercept, we can use the slope-intercept form of a line which is y = mx + b, where m is the slope and b is the y-intercept.
Using the point (5,10):
10 = -10(5) + b
10 = -50 + b
b = 60
Therefore, the equation of the line is:
y = -10x + 60
X is -2,-1,2,5
Y is 80,70,40,10. A.What is the slope of the line? What is the y intercept of the line? What is the equation of the line?
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