What is the slope intercept for equations
3x+4y=36
y = -1/2x+8

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

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If y varies as x, and y=8 as x=4 what will be the value of y if x=2