Find the perimeter of a rectangle that has a length of 3ft, and a width of (c+4)ft.
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
To find the slope from two points you can use the following formula:
Now substitute the two sets of points
Substitute the values like this:
and
Now you will need to simplify the following expression:
Make sure that denominators are the same before substracting:
when you divide with a fractional number you only need to flip the second fraction over (find its reciprocal). Then just multiply:
The point (4,y) has a known x coordinate of x = 4. The y coordinate is unknown right now so we'll just call it y.
Draw a vertical line (see side note below) through 4 on the x axis. I've done so in red (see attached image). The red line crosses the graph at the point (4,1) so this tells us that y = 1
Answer: y = 1
Side Note: you don't have to draw a vertical red line but it's handy to see how it works out. After you get used to these types of problems, you can visually be able to see the answer without these extra lines.
Draw a vertical line (see side note below) through 4 on the x axis. I've done so in red (see attached image). The red line crosses the graph at the point (4,1) so this tells us that y = 1
Answer: y = 1
Side Note: you don't have to draw a vertical red line but it's handy to see how it works out. After you get used to these types of problems, you can visually be able to see the answer without these extra lines.