Everything Maths Grade 10

5.Given the following graph, identify a function that matches each of the following equations:

 3  2  1 1 2 3

 12

 10

 8

 6

 4

 2

2

4

6

8

10

12

0

h(x)

g(x)

k(x)

f(x)

x

y

a) y=0,5x^2 b)y=x^2 c) y= 3x^2 d)y=x^2

6.Given the following graph, identify a function that matches each of the following equations:

 3  2  1 1 2 3

 4

 2

2

4

6

8

10

12

0

f(x)

g(x)

h(x)

x

y

a) y=x^2  3 b)y=x^2 + 1 c) y=x^2

7.Two parabolas are drawn:g:y=ax^2 +pandh:y=bx^2 +q.

166 6.3. Quadratic functions