Please look at the picture I need number 17 and number 18

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

answer:

at time x=0 we have 1000, at time x=1 we have 2000, at time x=2 we have 4000.  

so that's an initial value of 1000 and a ratio of 2,

y = 1000 (2^x)

hope this !

y = -1

x = 8

hope this !