Question

The equation of a line with slope m = -3 and including point (5, 5) is y = -3x + 20. true or false

Answer 1

the equation is in form y = m*x+b does the M value match

Answer 2

and put in x = 5 and y=5 , do both sides equal?

Answer 3

@DanJS really said what you should do.

since u know that m = -3 (slope) and the slope-intercept form is:
\[y = mx + b \]
and your coordinates are:
\[(x,y) = (5,5)\]

so now you just need to replace 5 for x and 5 for y.
\[5 = -3(5) + 20\]

when you compute\[-3(5) + 20\] do you get 5? if yes, then it's true. if not, then it's false.

*sorry if you did exactly what i did in your attachment, but i couldn't open it up, so i wrote this whole thing ;) *

Answer 4

@kacrabtree sorry, nvm about the attachment thing :(