GRAPH:
7x - 8f(x) - 28 = 0 =====> x-Intercept (4, 0 ) y-Intercept (0, -7/2 )
Steps:
7x - 8f(x) - 28 = 0 ====> -7x + 28 / 8
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Graph:
y- Intercept =====> y = -7x + 28/8, y = (0, -7/2 )
x-Intercept ======> y = -7x + 28/8, x = (4, 0 )
