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

Linear FunctionsThe 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...

Linear FunctionsKim 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...

Linear FunctionsSo 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^24ac))/(2a)` where `a,` `b` and `c` are coefficients of general...

Linear FunctionsThis 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...