Yolande952 Yolande952

11-06-2014
Mathematics

Answered

The graph of y = −5x^2 + 9 passes through (1,2a) in the
standard (x,y) coordinate plane. What is the value of a ?
F. 2
G. 4
H. 7
J. −1
K. −8

Answer :

Аноним Аноним

05-07-2014

[tex]y=-5x^2+9\\\\(1;\ 2a)\to\ for\ x=1;\ y=2a\\\\for\ x=1\\\\y=-5\cdot1^2+9=-5+9=4\\\\2a=4\ \ \ \ /:2\\\\a=2\\\\Answer:F.[/tex]

Answer Link

Other Questions

A ellas no les cuadros para la exposición faltar

What are the major sections of the orchestra

one way in which Robespierre and Louis xvi of France are similar is that both

will amplitude change if the pitch gets louder

Math help please Thank you

What is the derivative of ye1ye1

SAT Question of the Day Although his close friends and colleagues see him as outgoing and Milo usually feels shy and unsure of himself A cautious B resigned C c

the blueprint for landscaping a yard has a scale of 12 to1 foot if the blueprint is a rectangle 18 inches by 22 incheswhat are the dimensions of the yard

A rectangular blankets perimeter is 210 inches If the long sides of the blanket measure 60 inches what is the length of the shorter sides of the blanket

how would i do this problem slope 2 yintercept 7