5th 5.4C Numerical Expression

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operations (like addition, subtraction, multiplication, and division) but does not have an equal sign.

Front

What does the equation y = x + 0.5 represent?

Back

It represents a linear relationship where the value of y is always 0.5 more than the value of x.

Front

How do you find the total cost if Kenda spends $4 each day for lunch?

Back

You can use the equation y = 4x, where y is the total cost and x is the number of days.

Front

What is the slope in the equation y = mx + b?

Back

The slope (m) represents the rate of change of y with respect to x.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the value of y when x is 0, indicating where the line crosses the y-axis.

Front

If x = 3, what is y in the equation y = x + 0.35?

Back

y = 3 + 0.35 = 3.35.

Front

What is the relationship expressed by the equation y = 2x?

Back

y is twice the value of x.

Front

How do you complete a table for the equation y = 4x for x values 1, 2, 3, 4?

Back

For x = 1, y = 4; for x = 2, y = 8; for x = 3, y = 12; for x = 4, y = 16.

Front

What does it mean if y = x + 0.5?

Back

It means that for every increase of 1 in x, y increases by 1 as well, plus an additional 0.5.

Front

What is the value of y when x = 5 in the equation y = x + 0.5?

Back

y = 5 + 0.5 = 5.5.