What is the rate of change in y per unit change in x for this linear function? A. -5
B. -2.5
C. -2
D. -0.4

B. -2.5

Step-by-step explanation:

This is asking for gradient. Pick any two points (x, y) then calculate the y change ÷ x change. example, (0, -5) and (-2, 0). with [0-(-5) ÷ -2-0] you get -2.5

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1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23