Which equation is y = 9x2 + 9x – 1 rewritten in vertex form? y = 9 (x + one-half) squared minus thirteen-fourths y = 9 (x + one-
2 answers:
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Answer & Step-by-step explanation:
To find if they have a constant of proportionality of 12, use the following:
Divide y by the x value (x,y), and if the remaining equation is true, then that table has a constant of proportionality of 12.*
:Done
*Make sure you check all the values in a table. Sometimes only the first values will have k=12, while the others don't.
**The constant of proportionality is represented by <em>k</em>.