Question

Which equation best represent the line of fit that is drawn??

A)
y=0.8x+15


B)
y=1.0x+10


C)
y=1.6x+8


D)
y=–0.8x +12

Answer 1

Answer: Choice B

y=1.0x+10

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Step-by-step explanation:

Without the actual (x,y) coordinates for each point, it's nearly impossible to get the answer. However, we can note that the blue regression line is intersecting the y axis at y = 10 (or around there). So its very likely that the answer is y=1.0x+10 which is choice B

The equation y=1.0x+10 is in the form y = mx+b with,

• m = 1.0 = slope
• b = 10 = y intercept

The next best answer is y = -0.8x+12, since 12 is fairly close to 10. The y intercept portion isn't fully shown but again it appears the blue line is crossing at y = 10.