What is the y intercept of a graph containing the two points (3,1) and (7,-2)?

Mathematics

1 answer:

svetlana [45]2 years ago

6 0

Answer:

3.25

Step-by-step explanation:

The slope of the line is ∆y/∆x = (-2-1)/(7-3) = -3/4.

The point-slope form of the line with slope m through (h, k) is ...

y -k = m(x -h) . . . . . . . . . . we have m=-3/4, (h, k) = (3, 1)

y -1 = -3/4(x -3)

The y-intercept is the point on the line where x=0. For x=0, the value of y is ...

y = -3/4(-3) +1 = 9/4 +4/4

y = 13/4 = 3 1/4

The y-intercept is 3 1/4.

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2 years ago

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NARA [144]

Answer:

Option B, 24 feet

Step-by-step explanation:

<u>Step 1: Determine the perimeter</u>

To find how much fence we will need to go around the garden means that we need to find the perimeter. In order to find the perimeter we need to add up all of the sides which we can do using the formula below.

$P = 2(w + l)$