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100 POINTS!!!!!!

Use the function f(x) = 4x2 − 7x − 15 to answer the questions.

Part A: Completely factor f(x). (2 points)

Part B: What are the x-intercepts of the graph of f(x)? Show your work. (2 points)

Part C: Describe the end behavior of the graph of f(x). Explain. (2 points)

Part D: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part B and Part C to draw the graph. (4 points)

Respuesta :

kkscabin

Answer:

A- f(x) = (4x+5) (x-3)

B- 3 and -5/4

y=0

0=(4x+5)(x-3)

4x+5=0

x= -5/4

x-3=0

x=3

C- The graph goes up as we go right, meaning the f(x) increases as x increases.

D- 

step 1- plot y=0

step 2- plotting more points by calculating values of x

step 3- draw the double arrowed line.

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