Mathematics
Mathematics, 27.01.2020 23:31, tianna08

Ialready did part a (if i was right) can you with b and c? !

an expression is shown below:

f(x) = –16x^2 + 60x + 16

part a: what are the x-intercepts of the graph of the f(x)? show your work. (2 points)

first i factor out the gcfs (the same as i did in question 2 part a):
f(x) = –16x^2 + 60x + 16
f(x) = (–16x^2 - 4x)(64x + 16)
f(x) = -4x(4x + 1)16(4x + 1)
then i substituted 0 for f(x):
0 = -4x(4x + 1) 16(4x + 1)
and solved for the x's:
0 = -4(0)(4(-0.25) + 1) 16(4(-0.25 + 1)

part b: is the vertex of the graph of f(x) going to be a maximum or minimum? what are the coordinates of the vertex? justify your answers and show your work. (3 points)

part c: what are the steps you would use to graph f(x)? justify that you can use the answers obtained in part a and part b to draw the graph. (5 points)

answer
Answers: 1

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Ialready did part a (if i was right) can you with b and c? !

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