Exam lost marks

Question 1

giving the minimum coordinates of curve y = ( x - 3/2)^2 - 1/4

Answer 1

(3/2, -1/4)

Question 2

Describe fully the transformation that maps the graph of y = ( x - 3/2)^2 - 1/4 onto the graph of y = (x + 1)^2 - 1/4

Answer 2

(-5/2)
( 0 )

Question 3

Verify y = 2(x + 1)(x - 3)^2

Answer 3

.expand (x - 3)^2 so y = (write y formula)
.attempted to factorize quadratic
.repeated roots (point it out)
.factor f(-1) and f(3) for roots to = 0

Question 4

modal as a particle?

Answer 4

size and shape doesn’t matter and any rotation of the object is neglected

Question 5

when it says “find the equation of motion of the boat”

Answer 5

sub all numbers into the formula when you find them out don’t just leave motion equation as symbols

Question 6

What do you round to

Answer 6

3sf

Question 7

When dealing with prices and stuff for a business and you need to do a simultaneous equation what should you remember

Answer 7

.to give answer as fraction most likely even if it’s moneys or cakes
.you might need to give answer as inequality

Question 8

When using integration to find formula for displacement what should you not forget

Answer 8

.To mention lower and upper bound
.k (n + 1) = coefficient Where k = integrated coefficient & n = power