Maths

1.Use the quadratic formula to solve the equation: x2+ 12x +22=0

A) {-6 ±√14} B) {6±√22} C) {6+√14} D) {-12+√22}

2. Use the quadratic formula to solve the equation: 3x2+12x= -2

A) {-6±√30/3} B) {-6±√42/3} C) {-2±√10} D) {-1±√5}

3. Use the quadratic formula to solve the equation: 8x(x-4)-100=5x(x-9)

A) {-25/3, -4} B) {25/3, -4} C) {-25, 4} D) {- 25/3, 4}

4. Use the quadratic formula to solve the equation: x2+ 12x + 23 =0

A) (6+√13} B) -12 + √23} C) {-6±√13} D) {6±√23}

5. Use the quadratic formula to solve the equation: 2x2= -10x-7

A) {-5±√11/2} B) {-5±√39/2} C) {-10±√11/2} D) {-5±√11/4}

6. Use the quadratic formula to solve the equation: 8x(x-3)-75=5x(x-8)

A) {- 25/3, -3} B) {25/3, -3} C) {- 25/3, 3} D) {-25, 3}

7. Determine the nature of the solutions to the equation: x2+2x-3=0

A) Two complex solutions that are not real B) Two rational solutions C) one repeated real solution D) Two irrational solutions

8. Determine the nature of the solutions to the equation: 9x2+6x=0

A) Two rational solutions B) One repeated real solution

C) Two irrational solutions D) Two complex solutions that are not real

9. Determine the nature of the solutions to the equation: 3x2= -7x-7

A) Two rational solutions B) One repeated real solution C) Two irrational solutions D) Two complex solutions that are not real

10. graph picture on desktop

11. graph picture on desktop

12. Find the maximum or minimum value of the function: f(x) = x2 -2x -8

A) Maximum; -10 B) Minimum; -9 C) minimum; -4 D) maximum; -8

13. Find the maximum or minimum value of the function: f(x) = x2 + 2x+1

A) Maximum; -10 B) maximum;-8 C) minimum; 0 D) minimum; -4

14. Determine the number of x-intercepts of the function: f(x) = -x2+5x+2

A) no x-intercepts B) Two x-intercepts C) One x- intercept

15. Determine the number of x-intercepts of the function: f(x) =4x2-8x +4

A) One x-intercept B) Two...