QMI1500 Assignment 2 Solutions Second Semester 2022

QMI1500
ASSIGNMENT 2
SOLUTIONS




PREPARED BY: MTHOMBENI

0767297208

, QUESTION 1
The equation of quadratic function is given below:
y=f(x)=4x2−8x+3y=f(x)=4x2−8x+3
Determine the vertex coordinates, the discriminant of the function, the xx-intercept(s)
and yy-intercept(s) that the parabola has. Choose the correct answer.
a. Vertex = (1, -1), discriminant = 4, the xx-intercepts = (4, 0) and (8, 0), and yy-
intercepts = (0, 8).
b.Vertex = (8, 4), discriminant = 112, the xx-intercepts = (0, 1.5) and (0, 0.5), and yy-
intercepts = (3, 0).
c.Vertex = (0.5, 1.5), discriminant = 137, the xx-intercepts = (1, -1) and (0, 0), and yy-
intercepts = (0, 4).
d.Vertex = (1, -1), discriminant = 16, the xx-intercepts = (0.5, 0) and (1.5, 0),
and yy-intercepts = (0; 3).


QUESTION 2
Parabolas I, II and III below are described by the three quadratic functions:
1: y=x2−312y=x2−312
2: y=x2−6x+10y=x2−6x+10
3: y=12x2−92x+718y=12x2−92x+718




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