13. sarah has been keeping track of how many hours she practices basketball each week and
thinks that the percentage of free throws she makes during practice improves the more
she practices. to check this, she makes a graph comparing the number of hours she
practices each week with the percentage of free throws she makes each week. based on
what she learned in her algebra class, she realizes that her graph represents a function.
which of these could be sarah's graph?

answer:

i bet ill still beat

step-by-step explanation:

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)