EDEXCEL C1:
Q1) 2/5X^3-8X^1/2+3X+C
Q2) y=6X+2
Q3)a) 2root 2
b) 3root 6
Q4a) stretch in y-direction by scale factor 3.
b) translate by vector (0,-4) (downwards)
Q5) X=-1/7 ; Y= -1/3 X=-3/7 ; Y=1/3
Q6)a) A2= 5-4K A3= 5-5K+4K^2
B) 4K^2-9k+1
C)I) I forgot to do again lol
C)II) 500 (OMFG WAT WAS THIS?!)
Q7)dy/dx= 6X+2X^-2/3+X^1/2+7/6(X^3/2)
Q8)a) proof of inequality- had to substitute the 2 equations and the discriminant<0
b) 1/2<P<9/2
Q9)a) £225
b) £180
c) £1710
d) 18 years from 10 years old so 27 years old
Q10)a) 5Y+3X-44=0 b) R: (44/3,0) c) area of Quad: 76 units (this proved extremely difficult when splitting into 2 triangles, so I split in 2 triangles and a rectangle)
Q11)a) dy/dx= 6X^2+2KX+5
b) K=41/8=5.125
c) y co-ordinate- 49/2
D) 2y-17x-83=0
Q1) 2/5X^3-8X^1/2+3X+C
Q2) y=6X+2
Q3)a) 2root 2
b) 3root 6
Q4a) stretch in y-direction by scale factor 3.
b) translate by vector (0,-4) (downwards)
Q5) X=-1/7 ; Y= -1/3 X=-3/7 ; Y=1/3
Q6)a) A2= 5-4K A3= 5-5K+4K^2
B) 4K^2-9k+1
C)I) I forgot to do again lol
C)II) 500 (OMFG WAT WAS THIS?!)
Q7)dy/dx= 6X+2X^-2/3+X^1/2+7/6(X^3/2)
Q8)a) proof of inequality- had to substitute the 2 equations and the discriminant<0
b) 1/2<P<9/2
Q9)a) £225
b) £180
c) £1710
d) 18 years from 10 years old so 27 years old
Q10)a) 5Y+3X-44=0 b) R: (44/3,0) c) area of Quad: 76 units (this proved extremely difficult when splitting into 2 triangles, so I split in 2 triangles and a rectangle)
Q11)a) dy/dx= 6X^2+2KX+5
b) K=41/8=5.125
c) y co-ordinate- 49/2
D) 2y-17x-83=0
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