HELP MEE I am confused

Find an equation for the linear function which has slope -10 and x-intercept -7

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.