Everything Maths Grade 10

 6  5  4  3  2  1 1 2 3 4 5 6

 5

 4

 3

 2

 1

1

2

3

4

5

6

7

B

A

x

y

13.Given the following equation:

y= 5 x^2 + 3

a)Calculate they-coordinate of they-intercept.

b)Now calculate thex-intercepts. Your answer must be correct to 2 decimal places.

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

 3  2  1 1 2 3

 12

 10

 8

 6

 4

 2

2

4

6

8

10

12

h(x)

g(x)

k(x)

f(x)

x

y

a) y= 2 x^2 b) y= 2x^2 c) y=0,75x^2 d)y= 7x^2

Chapter 6. Functions 217