Apr 28, 2016 · set #y=4x+12# subtract 12 from both sides. #y-12=4x# Divide both sides by 4. #x=y/4-12/4# #x=y/4-3# '~~~~~ Where there is a #x# write #y# Where there is a #y# write #x# Giving. #y=x/4-3# #g(x)=x/4-3# '~~~~~ The inverse function is …

convert -3/4 into a decimal, then divide 12/-0.75 -3/4= 3-:4=-0.75 12/-0.75=-16 x=-16 Because -0.75xx-16=12

Jul 12, 2016 · x = 6 and x = -2 By moving 4x to the left of our equation, we can then complete the square in the following way: x^2 = 4x + 12 x^2 -4x = 12 We take the coefficient on the x-term, namely -4, divide it by 2, and square the result, giving us (-4/2)^(2) = (-2)^2 = 4 Since our goal is to rewrite our equation in the form of x^2 -4x + ? = 12 + ? We replace our ? marks with the …

Feb 15, 2016 · x^2-4x-12=(x+2)(x-6) x^2-4x-12 Find two numbers that when added equal -4, and when multiplied equal -12. The numbers 2 and -6 fit the criteria. Rewrite the trinomial in factored form.

Jun 19, 2015 · It is not necessary, but later steps are easier if we first make sure that we have 0 on one side. (Any constant will be ok, but 0 is easiest.) Partition the number line by finding zeros of the expression and points at which it is not defined. x^2+x-12 is defined for all x so we only need to find its zeros Solve x^2+x-12=0 by factoring if possible.

Jun 19, 2018 · #"the question is asking"# #4xx?=12# #"and so "?=3" since "4xx3=12# #"we solve this algebraically as"# #4x=12larrcolor(blue)"divide both sides by 4"#

Aug 21, 2017 · Replace y with 0 (if there is a y), then solve for x. The x-intercept is at x=3. The equation 4x-12=0 is for a vertical line, since (the non-existent) y does not depend on x.

Aug 4, 2016 · y intercept of the function is present at the point: (0,4) and x intercept of the function is present at the point: (3,0) See full explanation for more detail: In order to clearly recognise the x and y intercepts of the function we may convert the given function to linear gradient form. That being: y=mx+c Where: c is the constant determining the y intercept. and m is the gradient of …

May 18, 2018 · x = -(-4)/(2(-12)) = -1/6 y=-12(-1/6)^2-4(-1/6)-5 = -14/3 y=ax^2 + bx +c The vertex is the (x, y) value where x = (-b)/(2a) and y = the result when you put the x you found into the equation. Algebra Science

Nov 24, 2016 · x <=-3 and x in [-1, 4] Let f(x) = x^3-13x-12. The sum of the coefficients is 0. Xo, x+1 is a factor. Let the other factor be x^2+ax+b. By comparing the product with f(x), a =-1 and b =-12. The factors of x^2-x-12 are x+3 and x-4. So, f(x) = (x+1)(x+3)(x-4) <=0. One factor only or all the factors should be <=0. For x <= -3 and x in [-1, 4 ...