D = (5-1)/(13-(-3)) = 0.25
f(13) = 13d + x = 13 * 0.25 + a = 3.25 + a = 5
a = 1.75
f(x) = 1.75 + 0.25x
What are you asking in the question?
22 because, since they had $8 remaining, you add the $3 so that’ll equal 11, and then since they used 1/2 of their money, $11 plus 11 is 22.
1 < = x + 7 < 7....subtract 7
1 - 7 < = x + 7 - 7 < 7 - 7...simplify
-6 < = x < 0
closed circle on -6, open circle on 0, shading in between
The answer is 3 I hope this helps. please mark me brainliest :)