Question

Need help..

Answer 1

put a point that is on the line (x,y) into the equations and test which one holds true

Answer 2

for example x = 4 amd y = 0 is on the line

Answer 3

So, let's say I'm testing Answer A. The equation would become 5(4) + 4(-5) = ___?

Answer 4

a) 5x +4y = -20

(x,y) = (4,0) a point on the line

Answer 5

5(4) + 4(0) = -20 ?

Answer 6

So 5(4) + 4(0)?

Answer 7

true or false

Answer 8

False

Answer 9

ok try the same point in b)

Answer 10

-5(4) + 4(0) = -20..So B isn't right. But I think that D is.

Answer 11

yes, you can use any point on the line and test the given answers for true or false

Answer 12

if there are no choices, you have to find the slope of the line, then use a point on the line to form the point-slope equation

Answer 13

Alright, I think that will help me understand how to do similar problems. Thank you.

Answer 14

yw