Find the coordinates of the vertex and the intercepts of the quadratic function. When necessary, approximate the x-intercepts to the nearest tenth.f(x) = -9x2 - 2x - 7

A. V; I(0, -7); no x-intercepts
B. V; I(0, 7); (-0.8, 0), (1.0, 0)
C. V(9, -7); I(0, -7); no x-intercepts
D. V; I(0, 7); (-1.0, 0), (0.8, 0)


Answer: A

Mathematics

You might also like to view...

Solve the absolute value equation.|20x| = 26

A. {0, 1.3, -1.3} B. {1.3} C. {-1.3} D. {1.3, -1.3}

Mathematics

Find the product.(4x + 3)3

A. 16x6 + 12x3 + 729 B. 64x3 + 144x2 + 144x + 27 C. 64x3 + 144x2 + 108x + 27 D. 16x2 + 24x + 9

Mathematics

Use the prime factorization method to find the LCM of the given numbers.30 and 55

A. 55 B. 85 C. 1650 D. 330

Mathematics

Find the coordinates of the midpoint of the line segment PQ.P(5a, 8), Q(6a, 7)

A. (a, 1)
B.
C. (11a, 15)
D.

Mathematics