x = +13x = - 13
X = 12
x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
x2-13x+36=(x-9)(x-4)=0 x=9 or x=4
The equation y = 13x is in the form "y = mx + b" (in this case, b is zero). Therefore, the equation is linear.
13x = 91To solve for x, divide both sides of the equation by 13.13x/13 = 91/13x = 91/13 = 7
x = +13x = - 13
X = 12
x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}
2x - 13 x = 24 -11x = 24 -11x/-11 = 24/-11 x = -2 2/11
x2-13x+36=(x-9)(x-4)=0 x=9 or x=4
13x
The equation y = 13x is in the form "y = mx + b" (in this case, b is zero). Therefore, the equation is linear.
whats the slope of (-12 -11)
Y=13/11x + 12/11
You have NOT equated the linear expression. However, equating to zer(0) 13x - 11y - 12 = 0 Then 11y = 13x - 12 y = (13/11)x - 12/11 Hence the slope is '13/11' and the intercept is '-12/11'. However, if you intended to write the expression as an equation 13x - 11y = 12 ( Note the '=/-' signs). Then 11y = 13x - 12 and we have the same equation. y = (13/11)x - 12/11
(3x - 7)(2x + 9) = 0 x = 7/3 or -9/2