Answer:
The standard form of a parabola is
y=ax2+ +bx+c, where a≠0.
To find the vertex, you need to find the x- and y-coordinates.
From the number given is appears the rule is y = 2x + 1
This works for all three:
17 = 2(8) + 1
1 = 2(0) + 1
15 = 2(7)+1
Answer:
All real numbers
Step-by-step explanation:
All real numbers you can put instead of the x at <em>f(x)</em>
But your output must be 
Domain is the first one which I wrote
All real numbers
Answer:
x = 4
Step-by-step explanation:
90 + 70 + 5x = 180
160 + 5x = 180
180 - 160 = 20
20 / 5 = 4
Answer:
52
Step-by-step explanation:
he visited the gym 52 times