Tuesday

October 21, 2014

October 21, 2014

Posted by **Anonymous** on Tuesday, March 18, 2014 at 9:17pm.

X Rule Y

10 65

30 45

50 25

70 5

I can't find the rule

- Math -
**Reiny**, Tuesday, March 18, 2014 at 10:02pmDid you not notice that for every increase of 20 in the x's there is a decrease of 20 in the y's

so the slope is (45-65)/(30-10) = -1

so y = -x + b

using x=10, y = 65

65 = -10 + b

b = 75

y = -x + 75

**Answer this Question**

**Related Questions**

Math: Differential Equations - I've been stuck on this math hw problem for a ...

advanced functions - I need help figuring this question out please :) log2=log(x...

Precalculus - Let S be the set of points {(r, theta): 2<=r<=6, pi/3 <= ...

Algebra - I am in need of assistance with the following problem: v-4(4-v) = -2(...

calculus - I have been asked to solve this two different ways. The first way is...

Algebra - i am stuck on this one math problem. The question is to write a rule ...

Math - I Have to answer the game, "what's my rule" I've tried everything. I do ...

Science - Please Help! - How can you tell the similarity between displacement ...

math test - Hi! I have a math test coming up tomorrow, and I need to prepare. ...

eng - need a word that has all these letters d, l, b, a , e, e, n, b plz been ...