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Line L goes through point (2,13) and is perpendicular to the line y = 4x-5. Find the equation of line L.

Firstly we need to think about what facts we need to know about a line in order to write it's equation. Line equations are usually written in the form y= mx+c, which means that for any points x and y (x,y...

LO
Answered by Lowenna O. Maths tutor
5675 Views

If a = 2.8x10^5 and b=1.6 x 10^6, give the values of i) a +b and ii) a x b

Find from student what the first step is (get a or b in terms of the other).  

a = 2.8 x10^5 = 0.28x10^6

a + b = (0.28 + 1.6) x 10^6

= 1.88 x10^6

ii)

Know that a^x x b^y...

JA
Answered by Jerry A. Maths tutor
2034 Views

Solve the equation (3x + 2)/(x-1) + 3 = 4

Rearranging equations to find x.

The first thing to do is to look at the 3. To 'get rid' of the 3 from the left we need to minus 3. Remember we must do the same to both sides so we also minus 3 fro...

CN
Answered by Clara N. Maths tutor
3259 Views

How many 4 digit numbers are such that the first digit is non-zero and it is overall a multiple of 5?

The idea for this is simply counting the number of possibilities of each digit. Since the number is a multiple of 5, then we must have it finishing with 0 or 5, i.e., we have 2 possibilities for the last ...

HA
Answered by Henrique A. Maths tutor
3390 Views

What is the most difficult topic in HL Maths?

It will mainly depend on your own interests, so there is no definite answer. In my opinion, the whole calculus section is probably the most significant part of the course as it will take up a significant ...

AC
Answered by Ambrose C. Maths tutor
1884 Views

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