# SUMMATIVE TEST: M1,Q2

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- Q1
What should be the value of n in f(x) = x

^{nΒ }if f(x) is a polynomial functionan integer

any rational number

any number except 0

a non-negative integer

30sM10AL-IIa-1 - Q2
Which of the following is NOT a polynomial function?

π(π₯) = β7x

π(π₯) = βπ₯

^{3}β π₯ + 1π(π₯) = 4π₯

^{3}+ xπ(π₯) = 4π₯ β 2π₯

^{-5}30sM10AL-IIa-1 - Q3
What is the leading coefficient of π(π₯) = 8π₯ β 5π₯

^{7}+ π₯^{4}?-3

4

8

-5

30sM10AL-IIa-1 - Q4
How should the polynomial function π(π₯) = βπ₯ + 2π₯

^{3}+ 3π₯^{5}β 6 be written in standard form?π(π₯) = 3π₯

^{5}+ 2π₯^{3}β π₯ β 6π(π₯) = 3π₯

^{5}+ 2π₯^{3}+ π₯ β 6π(π₯) = 2π₯

^{3}β π₯ + 3π₯^{5}β 6π(π₯) = β 6 βπ₯ + 2π₯

^{3}+ 3π₯^{5}Β30sM10AL-IIa-1 - Q5
What are the x-intercepts in the given graph

x = -1, 1

x = -1, -1

x = -1

x = 1

30sM10AL-IIa-1 - Q6
Which of the following could be the graph of π(π₯) = π₯

^{3}+ 2π₯^{2}+ 1?30sM10AL-IIa-1 - Q7
Using leading coefficient test, what could be the behavior of the graph ofΒ Β Β Β Β Β Β Β Β Β π(π₯) = βπ₯

^{3Β }+ π₯^{2}β 19?Falling on both left and right end of the graph.

Falling on the left and rising on the right end of the graph.

Rising on the left and falling on the right end of the graph.

Rising on both left and right end of the graph.

30sM10AL-IIa-1 - Q8
A companyβs profit in thousands of pesos is determined by the number of branches x it operates: π(π₯) = π₯(π₯ β 15)(π₯ β 20). What is the profit if x = 5?

750 000

1500

750Β

1875

60sM10AL-IIa-1 - Q9
A sales manager of a shoe factory determines that its profit, P, in thousands of pesos, can be modeled by the function π(π₯) = 0.7π₯

^{3}+π₯^{2}β 10, where x represents the number of pair of shoes sold. What is the profit when there are 100 pairs of shoes sold?β± 850 390

β± 709 990

β± 790 593

β± 400

60s - Q10
Given the graph, which of the following is the y- intercept?

2

-1

0

1

60s