Question

Write the equation of the line that passes through (2, 4) and has a slope of –1 in point-slope form. @mathmale

Answer 1

Still need help?

Answer 2

yes

Answer 3

Well Mathmale is here now. They'll help ya.

Answer 4

thank you for offering :)

Answer 5

"Write the equation of the line that passes through (2, 4) and has a slope of –1 in point-slope form."

Got to know that "point-slope" form of the eq'n of a straight line: y = mx + b, where m is the slope and b is the y-intercept.

From the point (2,4) we get x=2 and y=4. m=-1. Subst. these 3 values into y=mx+b.

If you do this correctly, you should find it easy to determine the y-intercept, b.

Try it, please.

Answer 6

x-2=-1

Answer 7

y becomes -4

Answer 8

so x-2=-1(y-4)

Answer 9

what happen to your 2 helpers?

Answer 10

i dont know

Answer 11

the slope is -1
slope is the same for any 2 points on that line
slope is the change in y over the change in x