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irinina [24]
3 years ago
11

Write an equation in slope-intercept form of the line through (1,3) and (-3,7)

Mathematics
2 answers:
kupik [55]3 years ago
8 0
Y=-X+4 finding the y intercept, b and slope, mx thus y=mx+b
Brums [2.3K]3 years ago
6 0
Find the slope, then use substitute the slope and one of the given points into slope-intercept form.

Slope is change in y over change in x. (7-3)/(-3-1)=-1

Slope-inttercept form is y = mx+b.
3 = -1(1)+b
b=4

y = -x + 4
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Find 2 numbers who product is 15 and sum is 16.​
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Answer:

15 and 1

Step-by-step explanation:

x and y are two numbers.

Two equations:

x · y = 15

x + y = 16

Rearrange one of the equations (I'll rearrange the sum equation):

x + y = 16

x = 16 - y

Substitute that to the other equation and solve for y:

x · y = 15

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