Respuesta :
pareallell lines have same slope
y=mx+b, m=slope
y=3x-8 so we need
y=3x+b
find b
so given (4,-5)
we can subsitute the point
(x,y)
(4,-5)
x=4 then y=-5
so
-5=3(4)+b
-5=12+b
-17=b
y=3x-17 is equation
D is answer
y=mx+b, m=slope
y=3x-8 so we need
y=3x+b
find b
so given (4,-5)
we can subsitute the point
(x,y)
(4,-5)
x=4 then y=-5
so
-5=3(4)+b
-5=12+b
-17=b
y=3x-17 is equation
D is answer
The equation of the line which is parallel to the y = 3x - 8 and passes through the point (4, - 5) is y = 3x - 17
The general form a slope - intercept equation :
- y = bx + c ; b = slope ; c = intercept
Since both lines are parallel, then the slope is the same ; Hence, b = 3
The points (4, - 5) ;
- x = 4 ; y = - 5
Substitute into the equation to obtain the value of the intercept, c :
-5 = 3(4) + c
-5 = 12 + c
-5 - 12 = c
c = - 17
Therefore, the equation becomes y = 3x - 17
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