2-14 Practice

What is the value of a for the equation 2x² - 7x = 15?

What is the value of b for the equation 2x² - 7x = 15?

What is the value of c for the equation 2x² - 7x = 15?

Mai and Jada have both made mistakes. What is one solution to the equation 2x² - 7x = 15?

What is the other solution to the equation 2x² - 7x = 15?

What is the initial vertical velocity of the potato (in feet per second) at the time it was launched?

What is the height of the potato (in feet) at the time it was launched?

Write an equation that would allow us to find the time it takes for the potato to hit the ground.

What is one solution to your equation from 2a? (Round to the nearest tenth.)

What is another solution to your equation from 2a? (Round to the nearest tenth.)

How long, in seconds, was the potato in the air? (Round to the nearest tenth.)

Solve the equation 3x² - 6x - 9 = 0 by factoring or using the Quadratic Formula. Show your work.

What are the solutions to the equation 2x² - 5x - 1 = 0?

What is the only solution to the equation 4x² + 20x + 25 = 0?

What are the solutions to the equation x² + 8x = 5? (Use

notation.)

What is the coordinate for one x-intercept of the function f(x) = (x + 1)(x + 6)?

What is the coordinate for the other x-intercept of the function f(x) = (x + 1)(x + 6)?

What is the coordinate of the vertex of the graph of the function f(x) = (x + 1)(x + 6)?