# Linear Functions

## Linear Functions Questions and Answers

Linear Functions

Kim can cycle 30 km/h faster than she can run. If the speed at which she can run is X, the speed at which she can cycle is X + 30. She spends 48 minutes running and 48/3 = 16 minutes cycling. The...

Latest answer posted January 4, 2013 10:00 am UTC

Linear Functions

So you have 1/2=x^2+3x+4 implies x^2+3x+7/2=0 Now you use formula for solution of quadratic equation x_(1,2)=(-b pm sqrt(b^2-4ac))/(2a) where a, b and c are coefficients of general...

Latest answer posted October 28, 2012 8:25 pm UTC

Linear Functions

The set of equations 9x - 4y = -109 and 7x+89=y has to be solved for x and y. Substitute y = 7x+89 in 9x - 4y = -109 => 9x - 4(7x+89) = -109 => 9x - 28x - 356 = -109 => 19x = -247 => x...

Latest answer posted June 21, 2013 6:06 am UTC

Linear Functions

Since your function does not move left or right, the domain will remain the same as the reflection across the x-axis will still remain all real numbers except zero. A vertical compression and...

Latest answer posted September 23, 2013 12:03 am UTC

This function indicates a linear model as if the camera's retail is $100, applying the coupon would give the camera a price of$50. If the camera price retailed at \$150, the price of the camera...