Question

Write an equation in point-slope form for the line through the given point with the given slope.

(1, 8); m = -1/6

A. y - 1 = -1/6(x - 8)
B. y + 8 = -1/6(x + 1)
C. y - 8 = -1/6(x - 1)
D. y + 8 = -1/6(x - 1

Answer 1

here we have to apply this formula:
\(y-y_0=m(x-x_0)\)
where \((x_0,y_0)=(1,8)\), and \(m=-1/6\)

Answer 2

is it B @Michele_Laino

Answer 3

no, since the left side, has to be equal to \(y-8\)

Answer 4

i really dont know how to do this @Michele_Laino

Answer 5

so its C @Michele_Laino

Answer 6

yes! That's right!

Answer 7

can you help me with 1 more @Michele_Laino

Answer 8

ok!

Answer 9

The equation of the line that goes through the points (-1, 1) and (3, 9) is y = 2x + 3.

A. True.
B. False
@Michele_Laino

Answer 10

the slope \(m\), of the line which passes at those points you provided, is:
\[m = \frac{{{y_2} - {y_1}}}{{{x_2} - {x_1}}} = \frac{{9 - 1}}{{3 - \left( { - 1} \right)}} = \frac{{9 - 1}}{{3 + 1}} = ...?\]

Answer 11

so its true @Michele_Laino

Answer 12

please wait, try to complete such compèutation first

Answer 13

computation*

Answer 14

\(m=...?\)

Answer 15

when i graph the y=2x+3 is going through 4 and -2 @michele_laino

Answer 16

It is not possible

Answer 17

for example, I replace, into the equation \(y=2x+3\), \(x=-1\) at the right side, so I get:
\(y=2x+3=2 \cdot (-1)+3=...\)

Answer 18

what is \(y\) ?