Day 1 : 10 pesos
Day 2 : (10 pesos) 2
Day 3 : (20 pesos) 2
= 40 pesos
10+20+40= 70 pesos
first line is three or (3)
2nd line is left
answer: this function is a constant so that for every value of x has always the same value of y, that is -4.
a general straight line has the following form as a function:
y = f(x) = ax+b
where a is the slope of the line and b the intercept with the y axis.
now your function has the form:
f(x) = 0x - 4
it has slope a = 0 so it never changes (a constant) and intercepts the y axis in -4 and remember: never !
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so, you can build your graph giving values of x say, 1, 2, y will always be -4 giving a straight line passing through -4 and parallel to the x axis.
step-by-step explanation: .