# S Rey

Popular questions and responses by S Rey-
## Math

Choose the three true statements about the graph of the quadratic function y = x2 − 3x − 4. Options A) The graph is a parabola with a minimum point. B) The graph is a parabola with a maximum point. C) The point (2, 2) lies on the graph. D) The point

*asked on June 5, 2010* -
## Mathamatics

A conference centre charges £120 to hire a room, with an additional charge of £8 for each delegate. (a) Find the total cost (including room hire) of a conference with 30 delegates. (b) Write down a formula for the total cost, C,in £,ofhiring a room for

*asked on June 4, 2010* -
## Mathamatics

Choose the two true statements from the following. Options A) If the rate of inflation as measured by the RPI is 2%, then a pension index linked to the RPI will increase by 2%. B) A price ratio of 0.8 corresponds to a price decrease of 80%. C) If the price

*asked on June 4, 2010* -
## Mathamatics

This question concerns the straight line that passes through the points (−1, 3) and (2, −6). Choose the three true statements from the following. Options A) The gradient of the line is 3. B) The gradient of the line is −3. C) The gradient of the line

*asked on June 6, 2010* -
## Math

This question concerns the straight line that passes through the points (−1, 3) and (2, −6). Choose the three true statements from the following. Options A The gradient of the line is 3. B The gradient of the line is −3. C The gradient of the line is

*asked on June 5, 2010* -
## Math

Choose the three true statements from the following. Options A) The period of y =cosx is 90◦. B )The period of y =sinx is ð radians. C) The period of y =sin(2x) is four times the period of y =sinx. D) The period of y =sin(2x) is half of the period of y

*asked on June 5, 2010* -
## Mathamatics

A walk up a hill starts at a car park on the 100m contour and climbs steadily to a summit at 240 m. On a map with scale 1:25 000 the distance along the path from the car park to the summit is 9.6 cm. Choose the three true statements from the following.

*asked on June 4, 2010* -
## Mathamatics

The distance d in kilometres to the horizon can be estimated using the formula d = root13h,where h is the height above ground level, in metres, of the observer. (a) Use the formula to find the distance to the horizon for an observer on the London Eye, 135m

*asked on June 4, 2010* -
## Mathamatics

The distanceãd in kilometres to the horizon can be estimated using the formula d = 13h,where h is the height above ground level, in metres, of the observer. (a) Use the formula to find the distance to the horizon for an observer on the London Eye, 135m

*asked on June 4, 2010*