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Straight line Graph
Using formulas
Inequalities
Quadratic equation
Solving and using quadratic equations
100
What is the equation of a straight line?
y=mx+c
100
A rectangle has a width of x and a length of 2x. What is the formulae of the perimeter?
P = 2x + x + 2x + x
100
Symbols for more and less
< >
100
Open the brackets 3(4x - 7)
12x - 21
100
Make in a form of x^2+2xz+z x2 + 6x
(x + 3)^2 - 9=x^2 + 6x - 2
200
What letter represents the gradient?
m
200
What is the cost (C) of hiring this taxi to travel 'n' miles, when a taxi firm charges £0.50 per mile plus a fixed charge of £2.00 ?
C = £2 + (n x £0.50)
200
Solve the expression 3x - 7 < 8.
x < 5
200
Simplify 3p^2 - 6p
3p(p - 2)
200
Solve x^2 + 6x - 2 = 0
x = 0.317 or x = - 6.317
300
What is the point c in the straight line graph?
The point at which the line crosses the y-axis.
300
What is the formula for finding the circumference of a circle?
C = 2пr
300
Solve 2 < 3x + 5 less than or equal to 17, and show the solution on a number line.
-1 < x less than or equal to 4 http://www.bbc.co.uk/staticarchive/dcc5efc1e2b83ebcaf3dff6a669bde508b27747f.gif
300
Factorise 24a + 16
8(3a + 2)
300
Solve 2x2 + 20x + 3 = 0
x = - 0.152 or x = - 9.85
400
The co-ordinates of the points are (2,4), (1,2) and (-2, -4). Find the equation of the straight line.
y = 2x
400
The equation of a straight line is y = mx + c Rearrange the formula to make 'c' the subject.
c = y - mx
400
Shade the region of the graph y greater than or equal to 1, x less than or equal to 2
http://www.bbc.co.uk/schools/gcsebitesize/maths/images/mashadedgraph2c.gif
400
(k + 1)(k − 5) = 0
{−1, 5}
400
35k^2− 22k + 7 = 4
1/5, 3/7
500
A straight line, L, has equation 3y = 5x − 6 Find 1. the gradient of L 2. the y-co-ordinate of the point where L cuts the y-axis. (0, ……)
1. 5/3 2. -2
500
The formula connecting °C and °F is: C = 5 (F - 32) over 9 Rearrange the formula to make 'F' the subject.
F = 9C over 5 + 32
500
Draw a number line -7 less than or equal to 3x - 1 < 2
http://www.bbc.co.uk/schools/gcsebitesize/maths/images/inequalitiestest4.png
500
7r^2 − 14r = −7
{1}
500
15a^2− 3a = 3 − 7a
1/3, -3/5