Texas Success Initiative Math Problems (TSI).

If 3t - 7 = 5t, then 6t= - Answer- -21 The variables x and y are directly proportional, and y = 2 when x = 3. What is the value of y when x = 9? - Answer- 6 Here are the following graph equations: (1) y = x - 3 (2) y = x + 3 (3) y = 2/3x (4) y = 3/2x Which of the following equations has the coordinates (9,6)? - Answer- 3/2x There are 3x-2 trees planted in each row of a rectangular parcel of land. If there are total of 24x-16 trees planted in the parcel , how many rows of trees are there in the parcel? - Answer- 8 A group of 18 people ordered soup and sandwiches for lunch. Each person in the group had either one soup or one sandwich. The sandwiches cost $7.75 each and the soups cost $4.50 each. If the total cost of all 18 lunches was $113.50, how many sandwiches were ordered? - Answer- 10 Here are the following equations: (1) x^2 − 2x − 3 = 0 (2) x^2 + 2x - 3 = 0 (3) x^2 - 4x + 3 = 0 (4) x^2 + 4x + 3 = 0 Which of the following equations has both 1 and -3 as solutions? - Answer- X^2 + 2X - 3 In the xy plane, what is the y-intercept of the graph of the equation y=2(x + 3)(x - 4)? - Answer- -24 x^4 - 1 = - Answer- (x + 1)(x - 1)(x^2 + 1) (3x^2 y^3 )^3 = - Answer- 27 x^6 y^9 If the square root of 5 - X equals 4, then x = - Answer- -11 If X - 1 / X = 20, then X = - Answer- -1/19 A ball was kicked into the air from a balcony 20 ft above the ground , and the ball's height above the ground, in feet, t seconds after the ball was kicked was h(t) = 20 - 16t^2 + 32t. W