# Linear Functions Homework Help

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• 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...

Asked by tomorrow79 on via web

• 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...

Asked by gdblu on via web

• 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...

Asked by erudite on via web

• 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...

Asked by mchristian2 on via web