Answer:
2x^2 + 13x + 15
Step-by-step explanation:
I think it’s C but it might be D
Answer:
B. 210
Step-by-step explanation:
800/560 = 1.42857142857
300/1.42857142857= 210
Answer:
is no x-intercept
Step-by-step explanation:
A negative discriminant means that the parabola has no real roots (only imaginary roots.) Roots are where the parabola crosses the x-intercept and we know the parabola has no real roots, so it must never touch the x-axis. This means that the graph will have no x-intercept.
A) The formula x = -b ± sqrt(b2 - 4ac)/2a calculates the roots of a quadratic equation.
D) The formula M = ((x1 + x2)/2, (y1 + y2)/2) calculates the mid-point of the line joining the points and .
B) The formula m = ((y2 - y1)/(x2 - x1)) calculates the slope of a line.
Hence, option B should be used to find the slope of EF.