In a quadratic function of the form ax^2+bx+c, which of the following is not true?

a) the y-intercept is c.
b) if a is positive, the parabola opens up.
c) the vertex has an x-coordinate of -b/2a.
d) the axis of symmetry is the line y=-b/2a.

Which expression gives the area of the triangle shown below

1. what expression would be the same as 6x+x+0 2. find the prime factorization of 60 3. write the expression for 6 + x in words.

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .