Answer:
53$
Step-by-step explanation:
They tell you the equation of how much the coin is worth after x amount of years
Step 1: Substitute x=19 into the equation y=2x+15
y = 2(19) + 15
Step 2: Solve for y
y = 2(19) + 15
y = 38 + 15
y = 53
Therefore the coin is worth 53 dollars after 19 years
Answer: I think 5.3
Step-by-step explanation:
I did the a method then checked over it :/
Answer:
f(4) = 85 1/3 or 85.333...
Step-by-step explanation:
To find f(4), you must substitute 4 in place of x whenever x appears:
f(x) = 
* 
f(4) = * 
Next, simplify the exponent:
f(4) = * 256
Finally, multiply:
f(4) = 85 1/3 or 85.333...
The value of x is always 1
Ok so…. The “x” line goes horizontal and the “y” line goes diagonal. First thing you want to look at is if there’s a negative sign, the line is going to be pointing left like this:
\
\
\
From the center of the graph (called the origin) count up 5 units and left 2 units. Then graph that point. Then to graph another point, from the origin, move right 2 units and down 5 units then plot a point. Your graph should look kind of like this:
\
.
\
.
\
.
Remember: you know you did this correctly when you can draw a STRAIGHT line that connects all the dots
Hope this helped :)
