Answer:
a=-0.5
Step-by-step explanation:
22=a(0-10)²+72=a(-10)^2+72=a(100)+72
collect like terms
100 a=22-72=-50
dividing by 100
a=-50/100 =-1/2 = -0.5
a = - [tex]\frac{1}{2}[/tex]
22 = a(0 - 10)² + 72
simplify:
22 = a(-10)² + 72
22 = a × 100 + 72
22 = 100a + 72
subtract 72 from both sides:
100a = -50
divide both sides by 100:
