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3 years ago

13

What is the y-intercept of the line connecting (1,5) and (4,14)?

1 answer:

Phoenix [80]3 years ago

7 0

The answer is C. b=2.
I found the answer by first finding the slope. To find the slope i found the difference of the y values and divided that by the difference of the x values.
14-5/4-1
This simplifies down to:
9/3 which equals 3.
I then plugged this into the slope intercept form: y=mx+b to get y=3x+b
The next step would be to plug in the values of one of the points to solve for b. The point I choose was (1,5). By plugging this point into the equation i got 5=3(1)+b which simplifies to 5=3+b which means that b=2

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Step-by-step explanation:

1)

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2)

Here we want to find the probability that the spinner lands on an even numbered section.

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$n=8$

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