## 96mertcank96 2 years ago HELP MATH FINAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Which is not true about x=27 a) it intersects the axis at 2 b) its slope is undefined c) it is horizontal d) it is vertical Simplify using the distributive property -2(3x-4) if y varies directly as x and y and y=36 when x=18, find the constant of variation and write the variation equation for this find the slope of a line through the points (1,-8) and (-3,2) which is the independent variable in this situation? the cost of a long distance telephone call increases with the number of minutes of the call

1. JA1

hmm.... seems to me that it would be b but let me double check

2. JA1

"Which is not true" so how can there only be 1 right?

3. JA1

true*

4. nistal

x=27 means a vertical line at x=27 for every y

5. JA1

yes it does

6. nistal

so it does not intesept at x=2 its slope is not undefined and it not horizontal

7. JA1

8. JA1

unless im missing something here :/

9. Butterfly16

-2(3x-4) When using the distributive property, we're just going to distribute the -2 to 3x and -4. So, -2*3x and -2*-4 gives us: -6x+8

10. JA1

wait what :/ @Butterfly16

11. Mertsj

x=27 is a vertical line whose slope is undefined. So that means that choice A is untrue and choice c is also untrue. Must be a typo somewhere.

12. 96mertcank96

no typo got it right off the test

13. JA1

yes its probably a typo because there is only one wrong answer, i mean untrue

14. JA1

im confused :/

15. nistal

the slope is infinite rise

16. nistal

undefined would be if it not continous

17. JA1

ok so it is defined

18. JA1

right?

19. Mertsj

Then put c as the wrong answer since it is vertical and not horizontal. But it does not cross the axis at 2 either. Could it possibly be that the equation is x = 2?

20. JA1

i would go with c too, since its the most obvious one

21. abb0t

Interesting.

22. rathish.rulz

ya interesting ...