Functions and Graphs

The graph y=f(x) is shown below .What are the real solutions of f(x)=0?

• x=-6 ,x=-3 ,x=1, x=3

• x=-6, x=-2, x=3

• x=-3, x=2, x=-1, x=-2

• x=3, x=-3, x=1

The graph of y=f(x) is shown below. What are all the real numbers solutions of f(x)=0

• x=-3, x=-2

• x=-3, x=-4, x=2

• x=-2, x=2

• x=-4, x=-2

Solve the system of equations graphed on the coordinate axes below.

y=-x+3

y=3x+7

• (-1,2)

• (-2,1)

• (-1,4)

• (1,4)

The function f(x) is graphed below. What is true about the graph on the interval from point h to point i ?

• It is negative it is decreasing .

• It is positive it is increasing.

• It is negative it is increasing .

• It is positive it is decreasing.

Find the zeros of the function f(x)=-1.8x²+17x-37.7 .Round values to the nearest hundredth (if necessary). HINT use CALC menu on calculator.

• x=5.98, x=6.01

• x=2.96, x=3.21

• x=3.5, x=5.8

• x=3.56, x=5.89

Find the zeros of the function f(x)=x²-9x+14. Round to the nearest hundredth if necessary. .HINT use CALC menu on calculator.

• x=2, x=7

• x=-2, x=7

• x=1, x=3

• x=-1, x=3