X 3 plus x-142 plus x is an equation equal to x3+2x-142.
x²+2x-15=0 x1=-2/2 - Square root of ((2/2)²+15) x1=-1-4 x1=-5 x2=-2/2 + Square root of ((2/2)²+15) x2=-1+4 x2=3
It is false-apex
x²+6x+9=49 x²+6x-40=0 x1=-6/2 - Square root of ((6/2)²+40) x1=-3 - 7 x1= -10 x2=-6/2 + Square root of ((6/2)²+40) x2=-3 + 7 x2= 4
4
3
√[(X2-X1)2+(Y2-Y1)2]minus a negative is plus a positive√[(5+3)2+(-2-4)2]plus a negative is minus a positive√(82-62)√(64-36)√28 or 2√7
Let (x1, y1) = (-3, -4) and (x2, y2) = (3, -2). Thus, the slope is 1/3. m = (y2 - y1)/(x2 - x1) = (-2 - -4)/(3 - -3) = (-2 + 4)/(3 + 3) = 2/6 = 1/3.
(3x4) / 2 - 1 [(4-2)x1]+3 [(4x2)/2]+1
43
3 plus 2 is 5
y=x2+3 x1=1 x2=2 y(x1) = 1*1+3 = 4 y(x2) = 2*2+3 = 7 x2/x1 = 2, While y2/y1 = 7/4 !=2, and thus the function is nonlinear.
2+3+4=9