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# Math homework help please!?

Hey, so, I have homework due in tomorrow for math. I'm going to bed in like 30 minutes so please try answer for me, pretty please! Here is a picture of the question:

http://s1026.photobucket.com/albums/y324/katie2951...

In case you cannot see it clearly, it crosses Y at 8 and X at 4

And the question reads:

(a) Find the equation of the straight line shown in the diagram.

(b) Find the coordinates of the point where the line y=2x meets this line.

I have done question (a) and got the answer y=-2x+8 (please correct me if I'm wrong)

I am totally stuck on question (b). Please help me! Thanks ♥

### 3 Answers

- Anonymous4 years ago
a million) 4.9 + 4/17 = 4.ninety + 0.23 = 5.13 2) a million/2 + a million/2 = 2/2 = a million 3) 4/9 + a million/3 = 4/9 + 3/9 = 7/9 = 0.77 4) a million/2 - 4/17 = 9/34 17/34 - 8/34 = 9/34 9/34 = 9/34 ==> terrific 5) 5/6 - 5/17 = 0.eighty 3 - 0.29 = 0.fifty 4 6) a million/2 - 3/11 = 5.5/11 - 3/11 = 2.5/11 = 0.227 7) 5/7 - 3/13 = 0.seventy one - 0.23 = 0.40 8 8) a million/2 x 3/13 = 3/26 (a million x 3) / (2 x 13) = 3/26 3 / 26 = 3/26 ==> terrific 9) a million/2 x 4/11 = (a million x 4) / (2 x 11) = 4 / 22 = 2/11 10) 4/7 x 5/19 = (4 x 5) / (7 x 19) = 20 / 40 5 = 4/9 11) a million/2 x 5/12 = (a million x 5) / (2 x 12) = 5 / 24 12) 5/8 / (5/13) = a million 5/8 5/8 x 13/5 = a million + 5/8 (5 x 13) / (8 x 5) = 8/8 + 5/8 sixty 5 / 40 = 13/8 13 / 8 = 13/8 ==> terrific 13) 5/7 / (2/7) = 5/7 x 7/2 = (5 x 7) / (7 x 2) = 35 / 14 14) 2/3 / (a million/4) = 2/3 x 4 = 8 / 3 15) a million/2 / (2/9) = a million/2 x 9/2 = 9 / (2 x 2) = 9 / 4 sometimes, whilst we've a fraction it is extra suited if we write it as a decimal (because of making use of dividing the numerator with the denominator). yet sometimes it is likewise a extra suited concept to paintings purely with the numerators of the fractions (in the event that they have a similar denominator). additionally, undergo in techniques that when dividing fractions you're easily multiplying the fraction by making use of the reciprocal of the different one. occasion: 2/9 divided by making use of 5/8 ==> 2/9 / (5/8) divided (/) by making use of 5/8 ==> situations (x) 8/5 (reciprocal of 5/8) 2/9 / (5/8) = 2/9 x 8/5 = (2 x 8) / (9 x 5) = sixteen / 40 5 notice: If the fraction may well be simplified, do it. for this reason sixteen and 40 5 won't be able to be simplified yet they are able to be provided as a decimal (sixteen/40 5 = 0.35). wish this helped and stable good fortune! :)