Practice PLUS Exercises 65–68 describe quadratic equations. Match each description with the graph of the corresponding quadratic function. Each graph is shown in a [-10, 10, 1] by [–10, 10, 1] viewing rectangle. 65. A quadratic equation whose solution set contains imaginary numbers 66. A quadratic equation whose discriminant is 0 67. A quadratic equation whose solution set is {3 ± V2} 68. A quadratic equation whose solution set contains integers а. b. C. d. 69. When the sum of 6 and twice a positive number is subtracted from the square of the number, 0 results. Find the number. 70. When the sum of 1 and twice a negative number is

Q: Write an equation in slope-intercept form of the line that passes through (-4, 4) and (2, –7).

A: Given, the line passes through -4, 4 and 2,-7.

Q: Write v as a linear combination of u and w, if possible, where u = (2, 3) and w= (2, -2). (Enter…

A: We want to write v in linear combination of u and w.

Q: Create the equation of a quadratic function that has a vertex (3, 18) and x intercept at (6, 0)

A: Find the value of constants from the given condion gives us the equation.

Q: Determine the vertex of the function y=-2x2- 20x-51 O A) (2, -51) O B) (-5, -1) O C) (-2, -51) O D)…

A: Option (B) is correct.

Q: find the equation of the graph

A: We see that for values of x=0, y=0.

Q: What is an equation of the line that passes through the points (3,-8) and (1, -2)? Put your answer…

A:

Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.