contestada

which line has an equation of y= -5x+4 in slope intercept form?
 
a) a line passing thru the points -
(1,9) & (3,19)

b) (2,-14) & (4,-24)

c) (1,1) & (3,11)

d) (2,-6) & (4,-16)



which line has an equation of y 5x4 in slope intercept form a a line passing thru the points 19 amp 319b 214 amp 424c 11 amp 311d 26 amp 416 class=

Respuesta :

The answer is D because if you plug in the x you get -5×2+4=-6 and -5×4+5=-16
easiest way is to test the oints
(x,y)
plug in points and see which points give a true statment


a.
9=-5(1)+4?
9=-5+4?
9=-1?
nope

b.
-14=-5(2)+4?
-14=-10+4
-14=-6?
nope

c.
1=-5(1)+4?
1=-5+4?
1=-1?
nope

d.
-6=-5(2)+4?
-6=-10+4?
-6=-6?
yep
test other

-16=-5(4)+4?
-16=-20+4?
-16=-16?
yep



answer is D, (2,-6) and (4,-16)