contestada

Find the equation of a line that goes through the point (1,2)
(
1
,
2
)
and is PARALLEL to the line −3x+y=15
−
3
x
+
y
=
15
. Express your answer in the slope-intercept form of a straight line.
y=−3x+15

Respuesta :

texaschic101

Answer:

Step-by-step explanation:

-3x + y = 15

y = 3x + 15. The slope here is 3. A parallel line will have the same slope.

y = mx + b

slope(m) = 3

(1,2)....x = 1 and y = 2

now we sub and find b, the y int

2 = 3(1) + b

2 = 3 + b

2 - 3 = b

-1 = b

so ur equation is : y = 3x - 1

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