3 years ago

The points (3,-2) and (7,r) lie on a line with the slope 3/4. Find the missing coordinate r.

Mathematics

1 answer:

snow_lady [41]3 years ago

8 0

Answer:

the answer is 1

Step-by-step explanation:

X1=3 X2=7

Y1=-2 Y=r

M=y2-Y1/X2-X1

3/4=r-(-2)/7-3

3/4=r+2/4

Cross multiply

4(r+2)=4*3

4r+8=12

collect like terms

4r=12-8

4r=4

divide the by the co efficient of x

r=1

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The points (3,-2) and (7,r) lie on a line with the slope 3/4. Find the missing coordinate r.​

The points (3,-2) and (7,r) lie on a line with the slope 3/4. Find the missing coordinate r.