How to evaluate algebraic expression and equations
Evaluate following equation :
y = x – 10
y = ?, when x = 10
y = ?, when x = – 6
y = ?, when x = – 4
Click for answers. Check only after you have an answer on your notebook.
y = x – 10
When x = 10 : y = 10 – 10 = 0
When x = – 6 : y = – 6 – 10 = -16
When x = – 4 : y = – 4 – 10 = -14
Video Explanation:
Evaluate following equation:
y = 2x + 4
y = ?, when x = 2
y = ?, when x = 3
y = ?, when x = 4
Click for answers. Check only after you have an answer on you notebook.
y = 2x + 4
When x = 2 : y = 2 x 2 + 4 = 8
When x = 3 : y = 2 x 3 + 4 = 10
When x = 4 : y = 2 x 4 + 4 = 12
Video Explanation :
Evaluate following equation:
a = 4b – 3
a = ?, when b = 4
a = ?, when b = 6
a = ?, when b = -3
Click for answers. Check only after you have an answer on your notebook.
a = 4b – 3
When b = 4 : a = 4 x 4 – 3 = 13
When b = 6 : a = 4 x 6 – 3 = 21
When b = -3 : a = 4 x (-3) – 2 = -14
Video Explanation :
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