CAMBRIDGE COLLEGE LIMA
IGCSE MATHS
Extended Curriculum
Graphs of Functions
Worksheet 1
Evaluating Functions
Plotting Graphs of Functions
Drawing Tangents
Using Graphs to Solve Algebraic problems
Name:
Set:
Mathematics for IGCSE -Reference:
Pages 96 to 101
Perseverance in
overcoming difficulty
Teacher Feedback
1. Evaluating functions:
a. Find the value of “f(x)” or “g(x)” given the
value of “x” for quadratic, exponential and
reciprocal functions.
Self Assessment
Quality time spent
doing homework
Personal effort
By the end of this worksheet you should be able to:
/10
2. Plotting Graphs
/5
/5
b. Use a table of values of “f(x)” or “g(x)” and “x”
to plot the graphs of quadratic, exponential and
reciprocal function.
c. Use the “y” axis for the values of “f(x)” or
“g(x)”.
d. Plot a graph of a linear function given the
corresponding equation:
y = mx + c
3. Finding the gradient at a point on the graph
e. By drawing a suitable tangent, estimate the
gradient of the graph at a given point.
4. Solving algebraic equations graphically
f. Use the graph of a quadratic function to solve
quadratic equations.
g. Use the graphs to solve more complex algebraic
expressions.