Pure Year 1 C4

Question 1

y= k/x and y=k/x² both have

Answer 1

asymptotes at x=0 and y=0

Question 2

f(x) + a

Answer 2

moves (0)
(a)

Question 3

f ( x + a)

Answer 3

moves (-a)
(0)

Question 4

y = af(x)

Answer 4

stretch of the graph y = f(x) by a in the vertical (y)

Question 5

y = f(ax)

Answer 5

stretch of the graph y = f(x) by a scale factor of 1/a in the horizontal (x)

Question 6

graph of y = -f(x) is a

Answer 6

a reflection of the graph of y = f(x) in the x-axis.

Question 7

graph of y = f(-x) is a

Answer 7

a reflection of the graph of y = f(x) in the y-axis.