Which line has an x-intercept of -1 and a y-intercept of 1? A. y = −x

B. x − y = 1

C. x − y = −1

D. x + y = 1
Please try to explain :)

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Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is