To give a simple answer
if you consider the equation to be that of a line.
then if the variables cancel out, then the two lines will have the same slope.
two lines with the same slope fall under two categories. Parallel lines, and lines on top of each other
parallel lines have no solutions since the lines never cross each other
lines on top of each other have infinitely many solutions since they "cross" everywhere on the line
Answer:
70
Step-by-step explanation:
Answer:
f(-4) = 72, f(x + 5) = 3x² + 23x + 36
Step-by-step explanation:
f(-4) = 3(-4)² - 7(-4) - 4
= 48 - (-28) - 4
f(-4) = 72
f(x + 5) = 3(x + 5)² - 7(x + 5) - 4
= 3(x + 5)(x + 5) - 7(x + 5) - 4
= 3(x² + 10x + 25) - 7(x + 5) - 4
= 3x² + 30x + 75 - 7x - 35 - 4
f(x + 5) = 3x² + 23x + 36
No, 20 divided by 4 is just 5
Step-by-step explanation:
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