Unit 7 Lesson 7 Practice Problems

• Yes, it is in standard form because the terms are ordered by degree.

• No, it is not in standard form because the terms are not ordered by degree.

• Yes, it is in standard form because it is a quadratic expression.

• No, it is not in standard form because it is not a quadratic expression.

• x-intercepts: -3, -1; y-intercept: 3

• x-intercepts: 3, 1; y-intercept: -3

• x-intercepts: -3, 1; y-intercept: 3

• x-intercepts: 3, -1; y-intercept: -3

Which function could represent the height in meters of an object thrown upwards from a height of 25 meters above the ground t seconds after being launched?

Write the quadratic expression (2x + 3)(x - 4) in standard form.

Which of the following actions should be taken to compare the two graphs from the tables on the same coordinate plane?

• Plot the points using different colors or markings for each set of points.

• Plot the points using the same color for each set of points.

• Do not plot the points on the same coordinate plane.

• Plot the points without any markings.

• f(-2) = 6, f(0) = 6

• f(-2) = 2, f(0) = 6

• f(-2) = 6, f(0) = 2

• f(-2) = 2, f(0) = 2

• Yes, the graph has x-intercepts.

• No, the graph does not have x-intercepts.

Predict the x-intercepts and the x-coordinate of the vertex of each function. h(x) = (x + 4)(4 - x). Fill in the x-intercepts and x-coordinate of the vertex.

• The question asks for the prediction of the x-intercepts and the x-coordinate of the vertex for the function h(x) = (x + 4)(4 - x).

• The x-intercepts are -4 and 4, and the x-coordinate of the vertex is 0.

• The x-intercepts are -4 and 4, and the x-coordinate of the vertex is -4.

• The x-intercepts are 0 and 4, and the x-coordinate of the vertex is 4.

• Rock A reaches its maximum height first.

• Rock B reaches its maximum height first.

• Both rocks reach their maximum height at the same time.

• Cannot be determined from the given information.