Thursday

January 29, 2015

January 29, 2015

Posted by **Liz** on Thursday, August 2, 2012 at 3:57am.

Question:

supposed that y is directly proportional to x.

a) use the given info to find constant of proportionally k.

b) then use y=kx to find y for x=6

y= -62 when x=5

Please help.. thank you

this is all I have so far. not sure if I am correct.

y=kx

-62= k*(5)

but then how do I solve for k?

- Algebra 1B -
**Damon**, Thursday, August 2, 2012 at 4:11am-62= k*(5)

divide both sides of your equation by 5

-62/5 = k

k = -12.4

now if x = 6

y = -12.4 * 6

y = -74.4

- Algebra 1B -
**Liz**, Friday, August 3, 2012 at 12:47amThank you so much! Now I undersand .. :)

**Answer this Question**

**Related Questions**

CHEMISTRY - When we combine the three gas laws into one expression: V is ...

SAT math - Can someone please help me with this question: Write an equation that...

Math - Suppose that y is directly proportional to x. a. Use the given ...

algebra1 - M varies directly with n; m=144 when n=8. What is the constant of ...

Pre Calc (question was never answered) - Write the statement as a power function...

Calc - Find the constant of proportionality for the following situation: "y is ...

Pre-Calc - Write the statement as a power function equation. Use k for constant ...

Variation - I have few questions that I need checked please and could you help ...

PRE-CALC still stuck - Write the statement as a power function equation. Use k ...

math,help - I definately do not understand this problem. If y varies directly ...