The graph of y=-5x^2 + 9 passes through (1,2a) in the standard (x,y) coordinate plane what is the value of a? .
1 answer:
You might be interested in
Answer:
x=2.65
Step-by-step explanation:
First, we need to figure out how much the length of the sides is changing between the equations. In this case it is changing by a factor of 2.5. Now we need to work backwards. First use this equation:
This is because whatever the length of the side with x is, will be 14/2.5. So divide both sides by 2.5:
Next, add 5 to both sides:
Then divide both sides by 4:
Answer:
22
Step-by-step explanation:
A possible value of b is 22, since = 4.69.