Select the equation that contains the point (4, -8), and in which the graph of the line has a positive slope
y – 8 = –4(x + 4)

y – 8 = 4(x + 4)** i thought it was this one

y + 8 = +4(x – 4)

y + 8 = –4(x – 4)

Question

Select the equation that contains the point (4, -8), and in which the graph of the line has a positive slope
y – 8 = –4(x + 4)

y – 8 = 4(x + 4)** i thought it was this one

y + 8 = +4(x – 4)

y + 8 = –4(x – 4)

welshfella · Answer

a positive slope has a positive coefficient of x.

welshfella · Answer

so its i either B or C

why do you think its B?

mbma526 · Answer

It seems like the one that would make since

welshfella · Answer

the general form is 
y - y1 = m(x - x1)

welshfella · Answer

Dont forget (x1,y1) is the point on the line. So , here, x1 = 4 and y1 = -8

Plug these into the general equation and see what you get.

mbma526 · Answer

I got C

mbma526 · Answer

@welshfella

welshfella · Answer

yes C is correct

mbma526 · Answer

Thank you @welshfella

welshfella · Answer

y - (-8) - 4(x - 4)
y +8 = 4(x - 4)

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