Use the drop-down menu to determine whether each phrase describes scalar or matrix multiplication.
multiplies every element of a matrix by the same number:
requires two matrices that must be the same size:
uses both multiplication and addition to find the result:
multiplies the row of one matrix by the column of another:

1,scalar   2, neither   3,matrix    4,matrix

Step-by-step explanation:

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17

explanation:

remove parenthesis:

=

apply rule

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multiply fractions:

=

=

divide:

=

mordancy.