Question

please help me
please help me
please help me
please help me
please help me
please help me
please help me ​

Answer 1

Answer:

1)b

2) a(1,3)

3)b

4)b

5)c

Explanation:

1.The graph touches the X axis at two points.So these two are the zeroes of the polynomial.

2.Zeroes are:(1,3)

3.Expression if zeroes are (a,b) is x^2-(a+b)x+ab

so expression is x^2-(1+3)x+1*3

=x^2-4x+3 is the expression

or you can just substitute (1,3) in X from the options .If the answer for both (1,3) is zero then that's the expression but it's best to learn the formula.

4.as X=3 is a zero / factor of the expression it becomes zero.

5.The highest exponent in the expression is 2.Hence 2 is the degree and it's a quadratic expression