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Answers by Samuel A.

point (3,-2) crossing through m=0 (answer)

 let x1=3 , y1=-2 and m(slope)=0 And Use the formula : y-y1 = m (x-x1) Now plug in to get, y-(-2) = 0 (x-3) y+2 = 0 Therefore,y=-2                  

How do you solve this problem? (answer)

1400m = 356K 1200m = T Cross multiply to get, (1400)(T) = (1200)(356) (1400)(T) = 427200           T   = 427200/1400                =  305K

-2x + 4y = 12, 5x - 2y= 10 (answer)

-2x + 4y = 12 ----------(eqn 1) 5x-2y = 10 -----------(eqn 2) Multiply eqn 2, by 2 to get equation 3. 10x-4y = 20 ---------(eqn 3) -2x + 4y = 12 ----------(eqn 1) Now add eqn 1 to eqn 3, to get  8x = 32 x =32/8 x= 4 now plug in x=4, into any of the...