Answer:
Step-by-step explanation: You have to do the distributive property to get the answer.
Answer:
y = 2x² - 5x + 7
Step-by-step explanation:
General form of a quadratic is:
y = Ax² + Bx + C
Using the given points, construct equations and solve for A,B and C.
When x = 0, y = 7
7 = A(0)² + B(0) + C
C = 7
y = Ax² + Bx + 7
When x = -1, y = 14
14 = A(-1)² + B(-1) + 7
A - B = 7
A = 7 + B
When x = 1, y = 4
4 = A(1)² + B(1) + 7
A + B = -3
(7 + B) + B = -3
2B = -10
B = -5
A = 7 + (-5)
A = 2
y = 2x² - 5x + 7
Answer:
15 + b
Step-by-step explanation:
Answer:
-x - 29
Step-by-step explanation:
-2(5x + 1) + 3(3x - 9) = First, distribute the numbers in the parenthesis
-10x - 2 + 9x - 27 = Then, combine like terms
(-10x + 9x) + (-2 - 27)= Next, distribute the digits
-x - 29
