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how do you work out the gradient and point of interception of a linear graph given some coordinates

plot the coordinates to obtain a straight line graphcalculate the gradient by using the equation m=change in y/change in xfind the point of interception by seeing where the line crosses the y axis, where x=0
KP
Answered by Katrina P. • Maths tutor
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Traduisez la phrase suivante: ma mère veut que j'aille à l'université mais je préfèrerais trouver un emploi; translate the following sentence: last week, I bought a book and I am going to read it tomorrow

My mother wants me to go to university but I would prefer to find a jobLa semaine dernière, j'ai acheté un livre et je le lirai demain
JP
Answered by Julia P. • French tutor
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f(x) = e^(sin2x) , 0 ≤ x ≤ pi (a). Use calculus to find the coordinates of the turning points on the graph of y = f(x)

First, understand the concept of a turning point (zero gradient, implying first derivative is zero at the turning point)How do we differentiate exponentials ( if f(x) = e^g(x) then f'(x) = g'(x)*e^g(x) ) Oka...
MW
Answered by Marco W. • Maths tutor
6907 Views

How do I solve simultaneous equations?

The elimination method 2x + 3y = 83x + 2y = 7 First we multiply one or both of the equations so that one of their like terms share the same coefficients. 2x + 3y = 8 (multiply by 3) -> 6x + 9y = 243x + 2y...
JG
Answered by Joe G. • Maths tutor
4681 Views

Prove De Moivre's by induction for the positive integers

First we check the formula for our first case, n=1 where (cosx + isinx) n =cosnx + isinnx (cosx + isinx) 1 = cos(1x) + isin(1x) - holds true for n=1 next we assume true for our case n=k(cosx + isinx) k = cos...
HS
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