<span>Using the form y = mx + b, where m = the slope and b = the y intercept
The x intercept occurs when y = 0, therefore to find b:
-1/4*8 + b = 0
-2 + b = 0
b = 2
therefore our equation is
y = -1/4x + 2,
Sorry it was late
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So you'll want to get your mixed number(1 4/7) and convert it into an improper fraction (11/7) this can be achieved by adding the numerator by the whole number than multiplying the sum of that by the denominator and getting 11/7. After that you multiple them, 11 x 2 and 7 x 5 so the answer will be..
22/35
The equation for this is 5x=35. to find x you must divide both sides of the equation by 5 to get x alone. Once you do this, you get x=7, therefore the max he can pay for a single baseball is $7.