The slope of the line that contains the points (2, -7) and (-2, 5) is -3. What is the y-intercept? A. 11
B. 1
C. -1
D. -13

please help

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.

Which expression is equal to (f+g)(x)?

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !