Consider the graph of the quadratic function y = 3x2 – 3x – 6. What are the solutions of the quadratic equation 0 = 3x2 − 3x − 6

Question

nalin [4]

3 years ago

15

Consider the graph of the quadratic function y = 3x2 – 3x – 6. What are the solutions of the quadratic equation 0 = 3x2 − 3x − 6

?
a. –1 and 20
b. –6 and –1
c. –1 and 1
d. –6 and 2

Mathematics

1 answer:

Ilya [14] · Answer 1 · 2022-01-21T16:08:57+03:00

Ilya [14]3 years ago

4 0

Roots of the equation 3x² -3x-6=0 are -1 and 2,
all choices are given wrong
3*2²-3*2-6=0
12-6-6=0
0=0, which is true , so root is 2

3*20²-3*20-6=0
600-60-6=0
534=0 which is wrong, so root is 2, but not 20