Write the slope intercept form of the equation of each line

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

X-intercept=-5 y-intercept=2 the equation of the line is

Select the sequences that are geometric.