So you can set this problem up like 6+ 1.25x because Christian has $6 in his wallet that is the total so we can leave it so far by itself without a variable. Now on the other hand, the apples Christian wants to buy is $1.25 per apple it is x because if it is more than 1 that is each so in math we represent it with a variable of just x . Hoped that helped :)
The slope is basically the coefficient of x and that is 1 since 1x=x. To find the y-intercept, you need to subtitute x=0 into y=x+5 because x is at 0 when you are looking at the y-intercept.
y=0+5=5
So the slope is 1 and the y-intercept is 5.
