ABS Question 5
Consider the function f(x)=-4x2 - 8x + 10. Determine whether the graph opens up or down. Find the axis of symmetry, the vertex and the y-intercept
Graph the function
The parabola opens upward. The axis of symmetry is the line x=-1. The vertex is the point (-1,14). The y-intercept 10.
12-
А
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option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.