Which of the following are equivalent to the expression 94 9 4 ( 1.75 – 2 14 1 4 ) ? Select all that apply. – 2 14 1 4 1.6875 1 18 1 8 – 98 9 8 –1.125 74 7 4

Its -1.125 and -9/8 (It cant be 1 1/8 because its a positive and the answer is a negative fraction) Try -2 1/4 as well.

Step-by-step explanation:

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

sorry, i don't know i just need points, i'm new here. chao