Heather was asked to graph 3x - y = -4 by using slope and y-intercept. her graph is shown.

which choice supports the graph that she has drawn?
a) the slope is positive 3 and the y-intercept is (0,4).
b) the slope is negative 3 and the y-intercept is (0,4).
c) the slope is positive 3 and the y-intercept is (0,-4).
d) the slope is negative 3 and the y-intercept is (0,-4).

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

Me. i can't figure out this question. give an explanation too. .

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