Zeros
Find all real zeros of the function. Round 1 decimal place.
y=3x3 + 3
-1.1
Solve for all possible values of x. Round to the nearest whole number.
2x2 - 8 = x + 1
{-2, 2}
Find the x-coordinate of the maximum value of the function
y = -4x2 + 10
0
Find the value of R3 C3 of the product AB
A = 6 7 8
2 1 0
8 4 2
B = 1 1 2 4
8 2 9 3
0 0 2 1
56
Find the regression equation for the data in the form y = ax + b. Round a and b to 1 decimal place.
x 5 7 9 11 14 18 21
y 1 2 3 4 5 7 9
y = 0.5x - 1.4
Find all real zeros of the function
y = (x-1)2
1
Solve for x. Do not round.
log(x3) = ex-1
0.34
Find the x-coordinate of the minimum value of the function
y = 2x2 - 2x - 8
0.5
Find the determinant of the 4x4 matrix A below.
A = 1 1 2 2
0 3 6 -7
1 2 0 1
3 4 8 9
-64
Find the correlation coefficient (r-value). Round 3 decimal places.
x 5 7 9 11 14 18 21
y 1 2 3 4 5 7 9
0.997
Find all real zeros of the function. Round 3 decimal places.
y = 4x4 - 2
{-0.841, 0.841}
Solve for all possible values of x. Round 1 decimal place.
(5)/(x-3) = (x+1)/(x+2)
{-1.5, 8.5}
Find the y-coordinate of the local max of the function
y = x(x-1)(x-2)
Round 3 decimal places.
0.385
Find the value of R2, C2 for the INVERSE of the matrix below. Write answer as a fraction!
A = 1 5 -2
0 8 9
2 -2 2
1/26
The data below gives the math score (x) and english score (y) for a group of students. Predict the english score of a student who scored 70 on the math exam. Round final answer to the nearest whole number.
x 90 72 65 87 72 66
y 72 90 88 66 91 89
about 88
Solve. Round to nearest whole number. You must find (x, y, z)
x + y + 8z = 139
2y + 3z = 14
x - 2y = 10
(-69, -39, 31)
Solve the equation for all possible values of x. Round answers to the nearest whole number.
x-100 = x1/2 - 20
89
Solve. You must find (x, y) and round to nearest whole number.
7 - x = y +18 + 4x
17 - x + y = 14y +2x - 100
(-4, 10)